WO2017050299A1 - 一种数据传输方法以及相关设备 - Google Patents
一种数据传输方法以及相关设备 Download PDFInfo
- Publication number
- WO2017050299A1 WO2017050299A1 PCT/CN2016/100198 CN2016100198W WO2017050299A1 WO 2017050299 A1 WO2017050299 A1 WO 2017050299A1 CN 2016100198 W CN2016100198 W CN 2016100198W WO 2017050299 A1 WO2017050299 A1 WO 2017050299A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measurement
- pilot
- user equipment
- reference signal
- csi
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a data transmission method and related devices.
- the user equipment performs channel estimation by receiving the reference signal sent by the base station, and then determines the state information of the channel and performs feedback.
- the process of measuring by the user equipment there is a quantization loss.
- the channel has uplink and downlink anisotropy. Therefore, the base station obtains the uplink channel h by measuring the uplink signal sent by the user equipment, and directly transposes the h to obtain the downlink channel h', and according to The downlink channel h' performs eigenvalue decomposition to obtain a downlink precoding matrix.
- the precoding matrix of the FDD is measured by the user equipment and the quantized precoding matrix is fed back to the base station, there is a quantization loss, so the feedback channel information has an error compared to the TDD, resulting in performance. decline.
- Embodiments of the present invention provide a data transmission method and related device capable of improving performance.
- a first aspect of the embodiments of the present invention provides a data transmission method, including:
- the user equipment determines the measurement process and the feedback channel state information CSI type according to the type of the measurement process, and the type of the measurement process includes a definition of a pilot of the measurement signal and a pilot for measuring interference, and a measurement process corresponding to different types of measurement processes. And/or the type of channel state information CSI that is fed back is different;
- the user equipment performs measurements and feedback based on the determined measurement process and/or the type of CSI fed back.
- the user equipment determines a channel shape of the measurement process and the feedback according to the type of the measurement process.
- Status information CSI types include:
- the CSI type fed back by the user equipment is the first CSI
- the CSI type fed back by the user equipment is a second CSI
- the first CSI includes a feedback amount
- the second CSI includes The amount of feedback is different.
- the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is a periodically transmitted pilot;
- the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot is triggered by the base station, and/ Or the second measurement pilot is sent by a subband.
- the first CSI includes a level indication RI, a precoding matrix indicates a PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- different types of measurement processes and/or types of feedback channel state information CSI corresponding to the different types of measurement processes include:
- a measurement process includes pilots of M measurement signals and K pilots for measuring interference, M is an integer greater than or equal to 1, and K is an integer greater than 1, then K pilots measuring interference are independently restricted.
- Configuration the restrictive measurement refers to defining a range of resources that allow for a moving average of measurements.
- different types of measurement processes and/or types of feedback channel state information CSI corresponding to the different types of measurement processes include:
- a measurement process includes pilots of M measurement signals and K pilots for measuring interference, M is an integer greater than 1, and K is an integer greater than or equal to 1, and pilots of M measurement signals are independently restricted.
- Configuration the restrictive measurement refers to defining a range of resources that allow for a moving average of measurements.
- the configuration of the independent restrictive measurement includes at least one of the following:
- K1 interference measurement quantities of the K interferences obtained by the K measurement interference measurement are combined to determine a CQI, where K1 is an integer greater than 1 and less than or equal to K.
- the M1 signals in the M signal measurements obtained according to the pilot measurements of the M measurement signals are synthesized to determine a CQI, and M1 is an integer greater than 1 and less than or equal to M.
- the signaling type of the independent configuration restriction measurement includes a configuration for performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is notified by using UL grant signaling, or a DL grant letter. make.
- the K measurement interference pilots are all non-zero power pilots, or all are zero power pilots, or the K measurement interference pilots include non-zero power pilots and zero power pilots.
- At least one of the K measurement interference pilots is a restricted measurement configured to perform interference measurement is off.
- the measurement process configures pilots of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, a pilot of a target port is used to measure interference, and a measurement guide of the N ports.
- the frequency includes a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the measurement process is configured with a measurement pilot that includes N ports, where pilots of N1 ports are used to measure signals, and pilots of N-N1 ports are used to measure interference, and N is greater than 1.
- An integer of N1 is an integer greater than or equal to 1 and less than or equal to N.
- the user equipment determines that the power ratio of the power of each pilot port measurement signal and the data is X, and the number of subcarriers that are frequency-multiplexed by X and N ports. Related or fixed.
- the user equipment determines each pilot end.
- the power ratio of the power of the port measurement interference to the interference of the data received by the user equipment is Y, and Y is related to the number of subcarriers of the frequency division multiplexing of the N ports or is fixed.
- the power ratio of each pilot port measurement signal and the power ratio X of each of the pilot ports and the power ratio Y of the interference of the data received by the user equipment are equal.
- the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the user equipment performs the second CSI feedback in a second time slot of a subframe in which the second measurement pilot is located.
- the configuration signaling is in the same time slot as the second measurement pilot, the configuration signaling is used to configure the second measurement pilot, and the symbol of the configuration signaling is in the The second measurement pilot is sent before the symbol.
- the configuration signaling is in the same time slot as the second measurement pilot, the configuration signaling is used to configure the second measurement pilot, and the symbol of the configuration signaling is in the The second measurement pilot is sent before the symbol.
- the triggering signaling is in the same time slot as the second measurement pilot, where the trigger signaling is used to indicate that the user equipment feeds back CSI, the trigger signaling and the second measurement pilot Within the same time slot, and the symbol in which the trigger signaling is located is before the symbol transmitted by the second measurement pilot.
- the triggering signaling is in the same time slot as the second measurement pilot, where the trigger signaling is used to indicate that the user equipment feeds back CSI, the trigger signaling and the second measurement pilot Within the same time slot, and the symbol in which the trigger signaling is located is before the symbol transmitted by the second measurement pilot.
- configuration signaling for configuring the second measurement pilot and trigger signaling for indicating that the user equipment feeds back CSI are in the same DCI.
- the method further includes: the user equipment receives dynamic signaling sent by the base station, where the dynamic signaling indicates at least two items as follows:
- a set of types of CSI feedback a frequency domain granularity of CSI, a feedback moment for feeding back a set of types of CSI feedback, and an uplink channel type of CSI feedback;
- the type set of the CSI feedback includes at least two types of CSI feedback shown below:
- the user equipment performs indication information for displaying feedback and indication information for instructing the user equipment to perform implicit feedback.
- the user equipment determines, according to the dynamic signaling, a type of target CSI feedback, where the type of the target CSI feedback is any one of at least two types of CSI feedback included in the type set of the CSI feedback. And the user equipment further determines, according to the dynamic signaling, a feedback moment for feeding back a type of any one of the types of target CSI feedbacks of the at least two target CSI feedbacks.
- the method further includes: determining, by the user equipment, a feedback moment for feeding back a type of any target CSI feedback of the target CSI feedback as a target feedback moment according to the dynamic signaling, where the target The feedback moment includes at least two different moments.
- the method further includes: determining, by the user equipment, at least one reference signal configuration information according to the dynamic signaling;
- Any one of the at least one reference signal corresponds to a type of at least one CSI feedback included in the set of types of the CSI feedback.
- the method further includes: determining, by the user equipment, at least one feedback channel configuration information according to the dynamic signaling;
- Any one of the at least one feedback channel corresponds to a type of at least one CSI feedback included in the set of types of the CSI feedback.
- the time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to the reporting time is X1
- the reference of the first CSI measured according to the first measurement pilot The time interval X2 of the resource to the reporting time, where X1 ⁇ X2, the reference resource is a subframe transmitted by the second measurement pilot.
- the time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to the reporting time is X1, where X1 is configured for high layer signaling or configured by dynamic signaling,
- the reference resource is a subframe that is sent by the second measurement pilot.
- the time interval of the reference resource measured by the user equipment according to the second measurement pilot to the reporting time is X1, where X1 and the number of resources of the second measurement pilot included in one measurement process and/or Each of the second measurement pilots is associated with a number of ports, and the reference resource is a subframe transmitted by the second measurement pilot.
- a second aspect of the embodiments of the present invention provides a data transmission method, including:
- the base station indicates the type of the measurement process to the user equipment, and the type of the measurement process is used to enable the user equipment to determine a measurement process and a feedback channel state information CSI type according to a type of the measurement process, where the type of the measurement process includes a measurement
- the pilot of the signal and the definition of the pilot that measures the interference, the measurement process corresponding to different types of measurement processes and/or the type of channel state information CSI fed back is different;
- the base station receives the feedback sent by the user equipment, where the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the base station receives the CSI type sent by the user equipment as a first CSI;
- the base station receives the CSI type sent by the user equipment as the second CSI, and the first CSI includes the feedback amount and the first The two CSIs contain different amounts of feedback.
- the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is a periodically transmitted pilot;
- the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot is triggered by the base station, and / or the second measurement pilot is transmitted by a subband.
- the first CSI includes a level indication RI, a precoding matrix indicates a PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the measurement process corresponding to the different types of measurement processes and/or the channel state of the feedback The types of information CSI are different:
- a measurement process includes pilots of M measurement signals and K pilots for measuring interference, M is an integer greater than or equal to 1, and K is an integer greater than 1, then K pilots measuring interference are independently restricted.
- Configuration the restrictive measurement refers to defining a range of resources that allow for a moving average of measurements.
- different types of measurement processes and/or types of feedback channel state information CSI corresponding to the different types of measurement processes include:
- a measurement process includes pilots of M measurement signals and K pilots for measuring interference, M is an integer greater than 1, and K is an integer greater than or equal to 1, and pilots of M measurement signals are independently restricted.
- Configuration the restrictive measurement refers to defining a range of resources that allow for a moving average of measurements.
- independent limiting measurement on and off independent configuration of the start time of the restricted measurement time window, independent configuration of the end time of the restricted measurement time window, independent configuration of the average window duration of the restrictive measurement, independent configuration
- independent configuration The type of signaling for restrictive measurements.
- the base station receives the CQI sent by the user equipment, where the CQI is synthesized by the user equipment according to the K1 interference measurement quantity of the K interferences obtained by using the pilot measurement of the K measurement interferences.
- K1 is an integer greater than 1 and less than or equal to K.
- the base station receives the CQI sent by the user equipment, where the CQI is synthesized by the M1 signals in the M signal measurements obtained by the user equipment according to the pilot measurement of the M measurement signals.
- M1 is an integer greater than 1 and less than or equal to M.
- the signaling type of the independent configuration restriction measurement includes a configuration for performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is notified by using UL grant signaling, or a DL grant letter. make.
- the K measurement interference pilots are all non-zero power pilots, or all are zero power pilots, or the K measurement interference pilots include non-zero power pilots and zero power pilots.
- At least one of the K measurement interference pilots is a restricted measurement configured to perform interference measurement is off.
- the measurement process configures a pilot of the N port, where pilots of the N1 ports are used for testing The quantity signal, all the pilots of the N port are used to measure the interference.
- the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, a pilot of a target port is used to measure interference, and a measurement guide of the N ports.
- the frequency includes a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the measurement process is configured with a measurement pilot that includes N ports, where pilots of N1 ports are used to measure signals, and pilots of N-N1 ports are used to measure interference, and N is greater than 1.
- An integer of N1 is an integer greater than or equal to 1 and less than or equal to N.
- the power ratio of each pilot port measurement signal and the power ratio X of each of the pilot ports and the power ratio Y of the interference of the data received by the user equipment are equal.
- the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the base station receives the second CSI feedback sent by the user equipment in a second time slot of a subframe in which the second measurement pilot is located.
- the base station determines a time interval X1, where the X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time;
- the base station determines a time interval X2, where the X2 is a time interval from the reference resource of the first CSI measured by the user equipment according to the first measurement pilot to the reporting time;
- the reference resource is a subframe that is sent by the second measurement pilot.
- the base station determines a time interval X1, where the X1 is a time interval from the reference resource of the second CSI measured by the user equipment to the reporting time according to the second measurement pilot, where X1 is a high-level letter.
- the reference resource is a subframe that is sent by the second measurement pilot.
- the base station determines a time interval X1, where the X1 is a time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time, where X1 and a measurement are performed.
- the number of resources of the second measurement pilot included in the process is related to the number of ports included in each of the second measurement pilots, and the reference resource is a subframe sent by the second measurement pilot.
- the configuration signaling is in the same time slot as the second measurement pilot, the configuration signaling is used to configure the second measurement pilot, and the symbol of the configuration signaling is in the Second measurement pilot Before the symbol is sent.
- the configuration signaling is in the same time slot as the second measurement pilot, the configuration signaling is used to configure the second measurement pilot, and the symbol of the configuration signaling is in the The second measurement pilot is sent before the symbol.
- the triggering signaling is in the same time slot as the second measurement pilot, where the trigger signaling is used to indicate that the user equipment feeds back CSI, the trigger signaling and the second measurement pilot Within the same time slot, and the symbol in which the trigger signaling is located is before the symbol transmitted by the second measurement pilot.
- the triggering signaling is in the same time slot as the second measurement pilot, where the trigger signaling is used to indicate that the user equipment feeds back CSI, the trigger signaling and the second measurement pilot Within the same time slot, and the symbol in which the trigger signaling is located is before the symbol transmitted by the second measurement pilot.
- configuration signaling for configuring the second measurement pilot and trigger signaling for indicating that the user equipment feeds back CSI are in the same DCI.
- the method further includes: dynamic signaling sent by the base station to the user equipment, where the dynamic signaling indicates at least two items as follows:
- a set of types of CSI feedback a frequency domain granularity of CSI, a feedback time of frequency domain granularity used to feed back a set of CSI feedback types, and an uplink channel type of CSI feedback;
- the type set of the CSI feedback includes at least two types of CSI feedback shown below:
- the dynamic signaling is used to indicate that the user equipment determines a type of target CSI feedback, where the type of the target CSI feedback is in a type of at least two CSI feedbacks included in the type set of the CSI feedback.
- the dynamic signaling is used to instruct the user equipment to determine a feedback moment of a type for feeding back any one of the types of target CSI feedbacks of the at least two target CSI feedbacks.
- the method further includes: the dynamic signaling is used to instruct the user equipment to determine a feedback moment for feeding back a type of the target CSI feedback of the target CSI feedback as a target feedback moment, where The target feedback moment includes at least two different moments.
- the method further includes: the dynamic signaling is used to indicate that the user equipment determines at least one reference signal configuration information;
- Any one of the at least one reference signal corresponds to a type of at least one CSI feedback included in the set of types of the CSI feedback.
- the method further includes: the dynamic signaling is used to indicate that the user equipment determines at least one feedback channel configuration information;
- Any one of the at least one feedback channel corresponds to a type of at least one CSI feedback included in the set of types of the CSI feedback.
- a third aspect of the embodiments of the present invention provides a user equipment, including:
- a determining unit configured to determine a measurement process and a feedback channel state information CSI type according to a type of the measurement process, where the type of the measurement process includes a pilot for measuring a signal and a pilot for measuring interference, and different types of measurement processes correspond to The measurement process and/or the type of channel state information CSI that is fed back is different;
- a feedback unit configured to perform measurement and feedback according to the determined type of CSI of the measurement process and/or feedback.
- the determining unit includes:
- a first determining module if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, determining that the CSI type of the feedback is the first CSI;
- a second determining module configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, determine that the CSI type of the feedback is the second CSI, and the first CSI includes the feedback amount and the first The two CSIs contain different amounts of feedback.
- the first measurement pilot that is determined by the first determining module is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is periodically sent. Pilot
- the second measurement pilot that has been determined by the second determining module is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot Triggered for the base station, and/or the second measurement pilot is transmitted by a subband.
- the first CSI that is determined by the first determining module includes a level indication RI, a precoding matrix indication PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI that the second determining module has determined includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the determining unit is further configured to: determine that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is an integer greater than 1, then K
- the pilots that measure interference employ a configuration of independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be taken.
- the determining unit is further configured to: determine that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1, then M
- the pilots of the measurement signals are in a configuration of independent limiting measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be made.
- the determining unit is further configured to determine that the configuration of the independent restrictive measurement includes at least one of the following:
- the user equipment further includes a third determining module, configured to synthesize K1 interference measurement amounts of the K interferences obtained by using the pilot measurement of the K measurement interferences to determine a CQI, where K1 is greater than 1. An integer less than or equal to K.
- the user equipment further includes a fourth determining module, configured to synthesize M1 signals in the M signal measurements obtained by using the pilot measurements of the M measurement signals to determine a CQI, where M1 is greater than 1 and less than An integer equal to M.
- a fourth determining module configured to synthesize M1 signals in the M signal measurements obtained by using the pilot measurements of the M measurement signals to determine a CQI, where M1 is greater than 1 and less than An integer equal to M.
- the signaling type of the independent configuration restriction measurement determined by the determining unit includes a configuration for performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is Over UL grant signaling, or DL grant signaling.
- the determining unit is further configured to: determine that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K pilots that measure interference include non-zero power pilots. Frequency and zero power pilots.
- the determining unit is further configured to: determine that at least one of the pilots of the K measurement interferences is a restricted measurement configured to perform interference measurement is off.
- the determining unit is further configured to: determine that the measurement process configures pilots of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the determining unit is further configured to: determine that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, and a pilot of a target port is used to measure interference.
- the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the determining unit is further configured to: determine that the measurement process is configured with a measurement pilot that includes N ports, where pilots of the N1 ports are used for measuring signals, and pilots of N-N1 ports are used.
- N is an integer greater than 1
- N1 is an integer greater than or equal to 1 and less than or equal to N.
- the user equipment determines that the power ratio of the power of each pilot port measurement signal and the data is X, and X is related to the number of subcarriers of the frequency division multiplexing of the N ports. stable.
- the user equipment determines that the power ratio of the interference of each pilot port measurement interference and the data received by the user equipment is Y, Y, and N port frequency division.
- the number of subcarriers used is related or fixed.
- the power ratio X of each pilot port measurement signal and the power ratio Y of each pilot port measurement interference and the interference power of the data received by the user equipment are determined to be equal.
- the determining unit is further configured to determine that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the user equipment further includes a sending unit, where the sending unit is configured to perform the second CSI feedback in a second time slot of the subframe in which the second measurement pilot is located.
- the determining unit is further configured to: determine, according to the second measurement pilot, the reference resource of the second CSI to a reporting time interval of X1, according to the first measurement pilot measurement The time interval X2 of the reference resource of the first CSI to the reporting time, where X1 ⁇ X2, the reference resource is a subframe transmitted by the second measurement pilot.
- the determining unit is further configured to: determine, according to the second measurement pilot, the time interval of the reference resource of the second CSI to the reporting time to be X1, where X1 is configured for high layer signaling or dynamic The signaling is configured, and the reference resource is a subframe that is sent by the second measurement pilot.
- the determining unit is further configured to: determine, according to the second measurement pilot, that the reference resource to the reporting time interval is X1, where X1 and the second measurement pilot included in one measurement process
- the number of resources is related to the number of ports included in each of the second measurement pilots, and the reference resource is a subframe transmitted by the second measurement pilot.
- a fourth aspect of the embodiments of the present invention provides a base station, including:
- an indication unit configured to indicate a type of the measurement process to the user equipment, where the type of the measurement process is used to enable the user equipment to determine a measurement process and a channel state information CSI type of feedback according to a type of the measurement process, where the measurement process is Types include definitions of pilots for measuring signals and pilots for measuring interference, and different types of measurement processes correspond to different types of measurement processes and/or feedback channel state information CSI;
- a receiving unit configured to receive the feedback sent by the user equipment, where the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the receiving unit includes:
- the first receiving module is configured to: if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, receive the CSI type sent by the user equipment as the first CSI;
- a second receiving module configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, receive the CSI type sent by the user equipment as a second CSI, where the first CSI is included The amount of feedback differs from the amount of feedback included in the second CSI.
- the indicating unit is further configured to indicate that the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is periodically sent. Pilot
- the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot is triggered by the base station, and/ Or the second measurement pilot is sent by a subband.
- the first CSI that the receiving unit has received includes a level indication RI, a precoding matrix indicating PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI that the receiving unit has received includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the indicating unit is further configured to indicate that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is an integer greater than 1, then K
- the pilots that measure interference employ a configuration of independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be taken.
- the indicating unit is further configured to indicate that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1, then M
- the pilots of the measurement signals are in a configuration of independent limiting measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be made.
- the indicating unit is further configured to indicate that the configuration of the independent restrictive measurement includes at least one of the following:
- the receiving unit is further configured to receive a CQI sent by the user equipment, where the CQI is a K1 of the K interferences obtained by the user equipment according to the pilot measurement of the K measurement interferences.
- the interference measurement quantities are synthesized to determine a CQI, and K1 is an integer greater than 1 and less than or equal to K.
- the receiving unit is further configured to receive a CQI sent by the user equipment, where the CQI is in the M signal measurement obtained by the user equipment according to the pilot measurement of the M measurement signals.
- M1 signals are synthesized to determine a CQI, and M1 is an integer greater than 1 and less than or equal to M.
- the indicating unit is further configured to: indicate that the signaling type of the independent configuration restriction measurement includes a configuration of performing restriction measurement independently by using high layer signaling or dynamic signaling, where the dynamic signaling is performed. For signaling by UL grant, or DL grant signaling.
- the indicating unit is further configured to indicate that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K pilots that measure interference include non-zero power pilots. Frequency and zero power pilots.
- the indicating unit is further configured to indicate that at least one of the K measurement interference pilots is configured to perform interference measurement.
- the indication unit is further configured to instruct the measurement process to configure a pilot of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the indicating unit is further configured to indicate that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, and a pilot of a target port is used to measure interference.
- the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the indicating unit is further configured to indicate that the measurement process is configured with a measurement pilot that includes N ports, where pilots of the N1 ports are used for measuring signals, and pilots of N-N1 ports are used.
- N is an integer greater than 1
- N1 is an integer greater than or equal to 1 and less than or equal to N.
- the indicating unit is further configured to indicate a power ratio of each pilot port measurement signal and a power ratio X of the data, and each pilot port measures the interference power and the interference of the data received by the user equipment.
- the power is equal to Y.
- the indicating unit is further configured to indicate that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the receiving unit is further configured to receive, by using the second CSI feedback sent by the user equipment, in a second time slot of the subframe in which the second measurement pilot is located.
- the indicating unit is further configured to determine a time interval X1, where the X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time; Determining a time interval X2, where X2 is a time interval from the reference resource of the first CSI measured by the user equipment according to the first measurement pilot to the reporting time;
- the reference resource is a subframe that is sent by the second measurement pilot.
- the indicating unit is further configured to determine a time interval X1, where the X1 is a time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time, wherein X1 is configured for high-level signaling or dynamic signaling, and the reference resource is a subframe that is sent by the second measurement pilot.
- the indicating unit is further configured to determine a time interval X1, where the X1 is a time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time, wherein X1 is related to the number of resources of the second measurement pilot included in one measurement process and the number of ports included in each of the second measurement pilots, and the reference resource is a subframe sent by the second measurement pilot. .
- a fifth aspect of the embodiments of the present invention provides a data transmission method, including:
- the user equipment performs channel information measurement according to N1 reference signal resources in the set of N reference signal resources, where the N is a positive integer greater than or equal to 2, and the N1 is less than or equal to N.
- N is a positive integer greater than or equal to 2
- N1 is less than or equal to N.
- the user equipment performs measurement of interference information according to the N2 reference signal resources in the set of N reference signal resources to obtain interference information, where N2 is a positive integer less than or equal to N;
- the user equipment determines channel state information CSI according to the channel information and the interference information
- the user equipment sends the determined channel state information CSI to the base station.
- the N1 reference signal resources in the set of N reference signal resources and the N2 reference signal resources in the set of N reference signal resources are used to perform measurement of channel information
- the N2 reference signal resources are used to perform measurement of interference information.
- the N2 reference signal resources in the set of N reference signal resources include N21 reference signal resources configured to be non-zero power and/or N22 reference signal resources configured to be zero power, the N21 Less than or equal to the N, the N22 is less than or equal to the N.
- the user equipment dynamically switches between the first interference measurement resource, the second interference measurement resource, and the third interference measurement resource, where the first interference measurement resource is all non-zero power reference signal resource.
- the number of the non-zero-power reference signal resources is the N21, and the N21 is equal to the N;
- the second interference measurement resources are all reference power resources of zero power,
- the number of the zero-power reference signal resources is the N22, and the N22 is equal to the N;
- the third interference measurement resource includes a non-zero power reference signal resource and a zero-power reference signal resource,
- the number of non-zero-power reference signal resources is the N21, and the N21 is smaller than the N, the number of the zero-power reference signal resources is the N22, and the N22 is smaller than the N.
- the N21 reference signal resources configured by the N2 reference signal resources are configured to be the same as the N1 reference signal resources in the set of N reference signal resources.
- the method before the user equipment performs channel measurement according to the N1 reference signal resources in the set of N reference signal resources, the method further includes:
- the configuration information includes location information of time-frequency resources of N1 reference signal resources in the set of N reference signal resources;
- the configuration information also includes at least one of the following:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports;
- the method includes:
- the user equipment receives the configuration information sent by the base station, where the configuration information is used to indicate that the M1 ports of the X1 ports are used to send a first reference signal for performing channel measurement, where the first reference signal For a non-zero power reference signal, M1 is less than or equal to X1;
- the measuring, by the user equipment, the channel according to the N1 reference signal resources in the set of N reference signal resources includes:
- the user equipment performs channel measurement according to the first reference signal obtained through M1 ports of the X1 ports.
- the configuration information includes first indication information and second indication information, where the first indication information is information obtained by the user equipment by using high layer signaling, where the first indication information is used to indicate N
- the X1 ports multiplexed by the N1 reference signal resources in the set of reference signal resources the second indication information is information obtained by the user equipment by using dynamic signaling, and the second indication information is used by And M1 ports of the X1 ports multiplexed by N1 reference signal resources in a set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are code division multiplexing;
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are time-frequency multiplexing and code division multiplexing.
- the method before the user equipment performs interference measurement according to the N2 reference signal resources in the set of N reference signal resources, the method further includes:
- the configuration information includes location information of time-frequency resources of the N2 reference signal resources
- the configuration information also includes at least one of the following:
- the method further includes:
- the configuration information Determining, by the user equipment, the configuration information of the set of N reference signal resources according to the indication information stored in advance, wherein the indication information is pre-agreed by the base station and the user equipment, and the indication information is used to indicate The configuration information including a set of N reference signal resources;
- the user equipment receives the high layer signaling sent by the base station to indicate the configuration of the set of N reference signal resources;
- the user equipment receives dynamic signaling sent by the base station to indicate configuration and information of the set of N reference signal resources.
- the method further includes:
- the configuration information includes third indication information and fourth indication information, where the third indication information is information obtained by the user equipment by using high layer signaling;
- the third indication information includes location information of a time-frequency resource of the set of N reference signal resources
- the third indication information further includes at least one of the following:
- the fourth indication information is used to indicate a target port in a range of time-frequency resources of the set of the N reference signal resources indicated by the third indication information, where the target port is the N reference signal resources
- the N1 reference signal resources in the set multiplex the M1 ports of the X1 ports.
- the method before the user equipment performs interference measurement according to the N2 reference signal resources in the set of N reference signal resources, the method further includes:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, and the M1 ports of the X1 ports are used to transmit a non-zero power reference signal for performing channel measurement.
- M1 is less than or equal to X1;
- the method further includes:
- N2 reference signal resources in the set of N reference signal resources according to the location of the time-frequency resource including the set of N reference signal resources and the M1 ports in the X1 ports The location of the time-frequency resource.
- the user equipment is configured according to the N2 of the set of N reference signal resources.
- Measurements of interference with reference signal resources include:
- the user equipment performs interference measurement by using the N2 reference signals in the set of N reference signal resources, where the N2 reference signal resources in the set including the N reference signal resources include a first reference signal And a second reference signal resource, where the first reference signal resource is a reference signal resource of the non-zero power corresponding to the M1 ports of the X1 ports, where the second reference signal resource is a zero power reference signal assumed by the user equipment;
- the second reference signal resource is used by the user equipment to remove non-zero power reference signal resources corresponding to the M1 ports by using the time-frequency resources corresponding to the set of N reference signal resources. Corresponding time-frequency resources.
- the method further includes:
- the signal received by the user equipment on the non-zero power reference signal resource includes a sum of signals, interference, and noise sent by the base station to the user equipment;
- the signal received by the user equipment on the zero power resource includes a sum of interference and noise.
- a sixth aspect of the embodiments of the present invention provides a data transmission method, including:
- the N2 reference signal resources perform measurement of interference information, where N is a positive integer greater than or equal to 2, the N1 is a positive integer less than or equal to N, and the N2 is a positive integer less than or equal to N; And causing the user equipment to perform channel information measurement according to the N1 reference signal resources in the set of N reference signal resources, where the user equipment is configured according to the set of N reference signal resources.
- the N2 reference signal resources perform measurement of interference information to obtain interference information, so that the user equipment determines channel state information CSI according to the channel information and the interference information;
- the base station receives the channel state information CSI sent by the user equipment.
- the N1 reference signal resources in the set of N reference signal resources and the N2 reference signal resources in the set of N reference signal resources are used to perform measurement of channel information
- the N2 reference signal resources are used to perform measurement of interference information.
- the N2 reference signal resources in the set of N reference signal resources include N21 reference signal resources configured to be non-zero power and/or N22 reference signal resources configured to be zero power, the N21 Less than or equal to the N, the N22 is less than or equal to the N.
- the N21 reference signal resources configured by the N2 reference signal resources are configured to be the same as the N1 reference signal resources in the set of N reference signal resources.
- the base station sends, to the user equipment, high layer signaling for indicating configuration information of the N1 reference signal resources in the set of N reference signal resources, or the base station sends the user equipment to the user equipment. Transmitting dynamic signaling for indicating configuration information of the N1 reference signal resources in the set of N reference signal resources;
- the configuration information includes location information of time-frequency resources of N1 reference signal resources in the set of N reference signal resources;
- the configuration information also includes at least one of the following:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports;
- the base station sends configuration information to the user equipment, where the configuration information is used to indicate that the M1 ports of the X1 ports are used to send a first reference signal for performing channel measurement, where the first reference signal is Non-zero power reference signal, M1 is less than or equal to X1;
- a reference signal is used for channel measurement.
- the configuration information includes first indication information and second indication information, where the first indication information is information obtained by the user equipment by using high layer signaling, where the first indication information is used to indicate N
- the X1 ports multiplexed by the N1 reference signal resources in the set of reference signal resources the second indication information is information obtained by the user equipment by using dynamic signaling, and the second indication information is used by And M1 ports of the X1 ports multiplexed by N1 reference signal resources in a set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are code division multiplexing;
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are time-frequency multiplexing and code division multiplexing.
- the high-level signaling sent by the base station to the user equipment to indicate configuration information of the N2 reference signal resources in the set of N reference signal resources or the base station to the user Dynamic signaling sent by the device to indicate configuration information of the N2 reference signal resources in the set of N reference signal resources;
- the configuration information includes location information of time-frequency resources of the N2 reference signal resources
- the configuration information also includes at least one of the following:
- the method further includes:
- the configuration information Determining, by the user equipment, the configuration information of the set of N reference signal resources according to the indication information stored in advance, wherein the indication information is pre-agreed by the base station and the user equipment, and the indication information is used to indicate The configuration information including a set of N reference signal resources;
- the method further includes:
- the configuration information includes third indication information and fourth indication information, where the third indication information is information obtained by the user equipment by using high layer signaling;
- the third indication information includes location information of a time-frequency resource of the set of N reference signal resources
- the third indication information further includes at least one of the following:
- the fourth indication information is used to indicate a target port in a range of time-frequency resources of the set of the N reference signal resources indicated by the third indication information, where the target port is the N reference signal resources
- the N1 reference signal resources in the set multiplex the M1 ports of the X1 ports.
- the user equipment is configured to: according to the location information of the time-frequency resource that includes the set of N reference signal resources, and the location of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources.
- the information determines a location of the time-frequency resource of the N2 reference signal resources in the set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, and the M1 ports of the X1 ports are used to transmit a non-zero power reference signal for performing channel measurement.
- M1 is less than or equal to X1;
- N2 reference signal resources in the set of N reference signal resources according to the location of the time-frequency resource including the set of N reference signal resources and the M1 ports in the X1 ports The location of the time-frequency resource.
- the user equipment performs interference measurement by using the N2 reference signals in the set of N reference signal resources, where the N2 reference signal resources in the set including the N reference signal resources are included. a first reference signal resource and a second reference signal resource, where the first reference signal resource is a reference signal resource of the non-zero power corresponding to the M1 ports of the X1 ports, the second The reference signal resource is a reference signal of zero power assumed by the user equipment;
- the second reference signal resource is used by the user equipment to remove non-zero power reference signal resources corresponding to the M1 ports by using the time-frequency resources corresponding to the set of N reference signal resources. Corresponding time-frequency resources.
- a seventh aspect of the embodiments of the present invention provides a device, including:
- a first unit configured to perform channel information measurement according to N1 reference signal resources in a set of N reference signal resources, where the N is a positive integer greater than or equal to 2, where the N1 is a positive integer less than or equal to N;
- a second unit configured to perform interference information measurement according to the N2 reference signal resources in the set of N reference signal resources, where the N2 is a positive integer less than or equal to N number;
- a third unit configured to determine channel state information CSI according to the channel information and the interference information
- a fourth unit configured to send the determined channel state information CSI to the base station.
- the N1 reference signal resources in the set of N reference signal resources and the N2 reference signal resources in the set of N reference signal resources are used to perform measurement of channel information
- the N2 reference signal resources are used to perform measurement of interference information.
- the N2 reference signal resources in the set of N reference signal resources include N21 reference signal resources configured to be non-zero power and/or N22 reference signal resources configured to be zero power, the N21 Less than or equal to the N, the N22 is less than or equal to the N.
- the user equipment dynamically switches between the first interference measurement resource, the second interference measurement resource, and the third interference measurement resource, where the first interference measurement resource is all non-zero power reference signal resource.
- the number of the non-zero-power reference signal resources is the N21, and the N21 is equal to the N;
- the second interference measurement resource is all reference power resources of zero power, and the zero-power reference signal
- the number of resources is the N22, and the N22 is equal to the N;
- the third interference measurement resource includes a non-zero power reference signal resource and a zero power reference signal resource, and the non-zero power reference signal resource
- the number of the N21 is N21, and the N21 is smaller than the N
- the number of the zero-power reference signal resources is the N22, and the N22 is smaller than the N.
- the N21 reference signal resources configured by the N2 reference signal resources are configured to be the same as the N1 reference signal resources in the set of N reference signal resources.
- the unit is further configured to receive, by the base station, high layer signaling, configured by the base station, to indicate configuration information of the N1 reference signal resources in the set of N reference signal resources, or the user equipment.
- the configuration information includes location information of time-frequency resources of N1 reference signal resources in the set of N reference signal resources;
- the configuration information also includes at least one of the following:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports;
- the unit is further configured to receive configuration information sent by the base station, where the configuration information is used to indicate that the M1 ports of the X1 ports are used to send a first reference signal for performing channel measurement, where the A reference signal is a non-zero power reference signal, M1 is less than or equal to X1;
- the unit is further configured to: receive, by using the M1 ports of the X1 ports, the first reference signal; perform channel measurement by using the first reference signal obtained by the M1 ports of the X1 ports.
- the configuration information includes first indication information and second indication information, where the first indication information is information obtained by the user equipment by using high layer signaling, where the first indication information is used to indicate N
- the X1 ports multiplexed by the N1 reference signal resources in the set of reference signal resources the second indication information is information obtained by the user equipment by using dynamic signaling, and the second indication information is used by And M1 ports of the X1 ports multiplexed by N1 reference signal resources in a set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are code division multiplexing;
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are time-frequency multiplexing and code division multiplexing.
- the method before the user equipment performs interference measurement according to the N2 reference signal resources in the set of N reference signal resources, the method further includes:
- the configuration information includes location information of time-frequency resources of the N2 reference signal resources
- the configuration information also includes at least one of the following:
- the method further includes:
- the configuration information Determining, by the user equipment, the configuration information of the set of N reference signal resources according to the indication information stored in advance, wherein the indication information is pre-agreed by the base station and the user equipment, and the indication information is used to indicate The configuration information including a set of N reference signal resources;
- the user equipment receives the high layer signaling sent by the base station to indicate the configuration of the set of N reference signal resources;
- the user equipment receives dynamic signaling sent by the base station to indicate configuration and information of the set of N reference signal resources.
- the method further includes:
- the configuration information includes third indication information and fourth indication information, where the third indication information is information obtained by the user equipment by using high layer signaling;
- the third indication information includes location information of a time-frequency resource of the set of N reference signal resources
- the third indication information further includes at least one of the following:
- the fourth indication information is used to indicate a target port in a range of time-frequency resources of the set of the N reference signal resources indicated by the third indication information, where the target port is the N reference signal resources
- the N1 reference signal resources in the set multiplex the M1 ports of the X1 ports.
- the method before the user equipment performs interference measurement according to the N2 reference signal resources in the set of N reference signal resources, the method further includes:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, and the M1 ports of the X1 ports are used to transmit a non-zero power reference signal for performing channel measurement.
- M1 is less than or equal to X1;
- the method further includes:
- N2 reference signal resources in the set of N reference signal resources according to the location of the time-frequency resource including the set of N reference signal resources and the M1 ports in the X1 ports The location of the time-frequency resource.
- the measuring, by the user equipment, according to the N2 reference signal resources in the set of N reference signal resources includes:
- the user equipment performs interference measurement by using the N2 reference signals in the set of N reference signal resources, where the N2 reference signal resources in the set including the N reference signal resources include a first reference signal And a second reference signal resource, where the first reference signal resource is a reference signal resource of the non-zero power corresponding to the M1 ports of the X1 ports, where the second reference signal resource is a zero power reference signal assumed by the user equipment;
- the second reference signal resource is used by the user equipment to remove non-zero power reference signal resources corresponding to the M1 ports by using the time-frequency resources corresponding to the set of N reference signal resources. Corresponding time-frequency resources.
- the method further includes:
- the signal received by the user equipment on the non-zero power reference signal resource includes a sum of signals, interference, and noise sent by the base station to the user equipment;
- the signal received by the user equipment on the zero power resource includes a sum of interference and noise.
- An eighth aspect of the embodiments of the present invention provides a base station, including:
- a fifth unit configured to indicate, to the user equipment, a set of N reference signal resources, where N1 reference signal resources in the set of N reference signal resources are used for performing measurement of channel information, where the N reference signals are included
- the N2 reference signal resources in the set of resources perform measurement of interference information, where N is a positive integer greater than or equal to 2, the N1 is a positive integer less than or equal to N, and the N2 is less than or equal to N a positive integer; such that the user equipment includes N according to the The N1 reference signal resources in the set of reference signal resources perform channel information measurement to obtain channel information, and the user equipment performs interference information measurement according to the N2 reference signal resources in the set of N reference signal resources.
- Obtaining interference information so that the user equipment determines channel state information CSI according to the channel information and the interference information;
- a sixth unit configured to receive the channel state information CSI sent by the user equipment.
- the N1 reference signal resources in the set of N reference signal resources and the N2 reference signal resources in the set of N reference signal resources are used to perform measurement of channel information
- the N2 reference signal resources are used to perform measurement of interference information.
- the N2 reference signal resources in the set of N reference signal resources include N21 reference signal resources configured to be non-zero power and/or N22 reference signal resources configured to be zero power, the N21 Less than or equal to the N, the N22 is less than or equal to the N.
- the N21 reference signal resources configured by the N2 reference signal resources are configured to be the same as the N1 reference signal resources in the set of N reference signal resources.
- the base station sends, to the user equipment, high layer signaling for indicating configuration information of the N1 reference signal resources in the set of N reference signal resources, or the base station sends the user equipment to the user equipment. Transmitting dynamic signaling for indicating configuration information of the N1 reference signal resources in the set of N reference signal resources;
- the configuration information includes location information of time-frequency resources of N1 reference signal resources in the set of N reference signal resources;
- the configuration information also includes at least one of the following:
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports;
- the base station sends configuration information to the user equipment, where the configuration information is used to indicate that the M1 ports of the X1 ports are used to send a first reference signal for performing channel measurement, where the first reference signal is Non-zero power reference signal, M1 is less than or equal to X1;
- a reference signal is used for channel measurement.
- the configuration information includes first indication information and second indication information, where the first indication information is information obtained by the user equipment by using high layer signaling, where the first indication information is used to indicate N
- the X1 ports multiplexed by the N1 reference signal resources in the set of reference signal resources the second indication information is information obtained by the user equipment by using dynamic signaling, and the second indication information is used by And M1 ports of the X1 ports multiplexed by N1 reference signal resources in a set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are code division multiplexing;
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are time-frequency multiplexing and code division multiplexing.
- the unit is further configured to: send, to the user equipment, high layer signaling used to indicate configuration information of the N2 reference signal resources in the set of N reference signal resources, or the base station Dynamic signaling sent to the user equipment to indicate configuration information of the N2 reference signal resources in the set of N reference signal resources;
- the configuration information includes location information of time-frequency resources of the N2 reference signal resources
- the configuration information also includes at least one of the following:
- the unit is further configured to: determine, by the user equipment, configuration information that includes a set of N reference signal resources according to the pre-stored indication information, where the indication information is the base station and the user Pre-agreed by the device, and the indication information is used to indicate configuration information of the set that includes N reference signal resources;
- the unit is further configured to send, to the user equipment, high layer signaling for indicating a configuration of the set of N reference signal resources;
- the unit is further configured to send, to the user equipment, the indication that the The configuration of the set of signal resources and the dynamic signaling of the information are examined.
- the configuration information includes third indication information and fourth indication information, where the third indication information is information obtained by the user equipment by using high layer signaling;
- the third indication information includes location information of a time-frequency resource of the set of N reference signal resources
- the third indication information further includes at least one of the following:
- the fourth indication information is used to indicate a target port in a range of time-frequency resources of the set of the N reference signal resources indicated by the third indication information, where the target port is the N reference signal resources
- the N1 reference signal resources in the set multiplex the M1 ports of the X1 ports.
- the user equipment is configured to: according to the location information of the time-frequency resource that includes the set of N reference signal resources, and the location of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources.
- the information determines a location of the time-frequency resource of the N2 reference signal resources in the set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, and the M1 ports of the X1 ports are used to transmit a non-zero power reference signal for performing channel measurement.
- M1 is less than or equal to X1;
- N2 reference signal resources in the set of N reference signal resources according to the location of the time-frequency resource including the set of N reference signal resources and the M1 ports in the X1 ports The location of the time-frequency resource.
- the user equipment performs interference measurement by using the N2 reference signals in the set of N reference signal resources, where the N2 reference signal resources in the set including the N reference signal resources are included. a first reference signal resource and a second reference signal resource, where the first reference signal resource is a reference signal resource of the non-zero power corresponding to the M1 ports of the X1 ports, the second The reference signal resource is a reference signal of zero power assumed by the user equipment;
- the second reference signal resource is the user equipment that includes the N reference letters by using the The time-frequency resource corresponding to the set of the number of resources removes the time-frequency resource corresponding to the non-zero-power reference signal resource corresponding to the M1 ports.
- the embodiment of the invention discloses a data transmission method and a related device.
- the data transmission method includes: the user equipment determines a measurement process and a feedback channel state information CSI type according to a type of the measurement process, and the type of the measurement process includes a measurement Derivation of the pilot of the signal and the pilot of the measurement interference, the measurement process corresponding to different types of measurement processes and/or the type of feedback channel state information CSI; the user equipment according to the determined measurement process and/or The type of feedback CSI is measured and fed back.
- the user equipment can determine different measurement processes and feedback channel state information CSI types according to different types of measurement processes, so that the user can feed back more accurate downlink channel information to the base station, thereby improving data transmission between the base station and the user equipment. Performance.
- FIG. 1 is a flow chart of steps of an embodiment of a data transmission method according to an embodiment of the present invention
- FIG. 2 is a flow chart of steps of another embodiment of a data transmission method according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of an embodiment of a data transmission scenario according to an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present disclosure.
- FIG. 7 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present disclosure.
- FIG. 8 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
- FIG. 14 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 15 is a flowchart of another embodiment of a data transmission method according to an embodiment of the present invention.
- FIG. 16 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present disclosure.
- FIG. 17 is a schematic diagram of another embodiment of a data transmission scenario according to an embodiment of the present invention.
- the data transmission method includes:
- the base station indicates, to the user equipment, a type of the measurement process.
- the type of the measurement process includes a definition of a pilot of the measurement signal and a pilot that measures the interference.
- the base station indicates, by using the type of the measurement process, that the user equipment determines the measurement process and the channel state information CSI type of the feedback.
- the user equipment determines, according to a type of the measurement process, a measurement process and a feedback channel state information CSI type.
- the measurement process determined by the user equipment is different.
- Different types of measurement processes correspond to different types of measurement processes and feedback CSI.
- the user equipment performs measurement and feedback according to the determined measurement process and/or the type of CSI fed back;
- the base station receives feedback sent by the user equipment.
- the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the base station may perform scheduling of related downlink data according to the feedback sent by the user equipment.
- the user equipment can determine different measurement processes and feedback channel state information CSI types according to different types of measurement processes, so that the user can improve the base station by feeding back more accurate downlink channel information to the base station.
- the channel state information CSI type for determining the measurement process and feedback for the user equipment is exemplified and is not limited.
- the user equipment receives a first measurement pilot sent by the base station.
- the base station may periodically send the first measurement pilot.
- the base station sends the first measurement pilot with a period of 5 ms.
- the embodiment does not limit the sending manner of the first measurement pilot and the period of sending.
- the first measurement pilot is a precoded pilot, or the first measurement pilot is a pilot that is not precoded.
- the user equipment feeds back a first CSI to the base station.
- the CSI type fed back by the user equipment is the first CSI.
- the first CSI includes a level indication RI, a precoding matrix indicates a PMI, and a channel quality indicator CQI.
- the first CSI includes RI, PMI.
- the base station generates first scheduling information according to the first CSI.
- the base station when the base station needs to perform user scheduling in the n+1 subframe, the base station sends the first scheduling information in an n subframe.
- the first scheduling information includes a scheduled frequency domain resource of the physical downlink shared channel PDSCH, a new data indication, a redundancy version, a quasi co-location, a scrambling code ID, etc., and the base station only sends the first scheduling information in the n subframe. And not transmitting the PDSCH, and transmitting, in the frequency domain resource range indicated in the first scheduling information, the second measurement pilot, where the configuration information of the second measurement pilot is indicated in the first scheduling information, for example, the second measurement pilot
- the configuration information indicates a time-frequency resource location, a port number, a power information, and the like of the second measurement pilot.
- the user equipment receives the first scheduling information.
- the user equipment is capable of determining configuration information of the second measurement pilot according to the first scheduling information.
- the user equipment receives a second measurement pilot sent by a base station.
- the user determines a time-frequency resource location of the second measurement pilot according to the configuration information according to the second measurement pilot, and receives the second measurement pilot at the specified time-frequency resource location.
- the user equipment feeds back a second CSI to the base station.
- the CSI type fed back by the user equipment is the second CSI.
- the first CSI includes a feedback amount different from a feedback amount included in the second CSI.
- the time-frequency resource location of the second measurement pilot is in a first time slot of one subframe
- the user equipment performs the second CSI feedback in a second time slot of a subframe in which the second measurement pilot is located.
- the second measurement pilot is sent in the first slot of the nth subframe, and the user equipment completes the measurement in the second slot of the nth subframe and reports the Second CSI.
- the second CSI includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the BI index (beam index) is a resource indication selected from at least two first measurement pilots or ports, or a port indicates that each port corresponds to one beam direction.
- the CQI included in the second CSI is assumed to be interference.
- the configuration signaling is further sent on the nth subframe used to send the second measurement pilot.
- the configuration signaling is in the same time slot as the second measurement pilot, the configuration signaling is used to configure the second measurement pilot, and the symbol of the configuration signaling is in the The second measurement pilot is sent before the symbol.
- the triggering signaling may be further sent on the nth subframe used to send the second measurement pilot.
- the trigger signaling is in the same time slot as the second measurement pilot, and the trigger signaling is used to indicate that the user equipment feeds back CSI, the trigger signaling and the second measurement pilot. Within the same time slot, and the symbol in which the trigger signaling is located is before the symbol transmitted by the second measurement pilot.
- the configuration signaling, the second measurement pilot, and the touch Signaling is sent on the same nth subframe.
- the configuration signaling and the trigger signaling are in the same DCI.
- the base station generates second scheduling information according to the second CSI.
- the base station sends the second scheduling information to the user equipment.
- the base station determines the link adaptive modulation and coding mode MCS and the transport block size of the user equipment, and then sends the second scheduling in the n+1 subframe. information.
- the second scheduling information includes the MCS and the TB size information
- the PDSCH is sent, and the user determines the scheduling resource in the frequency domain of the PDSCH according to the first scheduling information, and the scheduling resource in the time domain, and determines the PDSCH according to the second scheduling information.
- the MCS and TB size are in turn subjected to data demodulation.
- the second scheduling information may be in a manner similar to PDCCH format 3 or a PHICH.
- the time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to the reporting time is X1, where the measurement according to the first measurement pilot is performed.
- the reference resource is a subframe that is sent by the second measurement pilot.
- the time interval of the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to the reporting time is X1, where X1 is configured for high layer signaling or configured by dynamic signaling.
- the time interval of the reference resource measured by the user equipment according to the second measurement pilot to the reporting time is X1, where X1 and the number of resources of the second measurement pilot included in one measurement process and/or Each of the second measurement pilots is associated with a number of ports.
- the base station may configure dynamic signaling, and send the dynamic signaling to the user equipment.
- the base station may notify the user equipment to perform CSI feedback by using the dynamic signaling.
- the dynamic signaling indicates at least two items shown below:
- the type of the CSI feedback corresponding to at least one of a set of types of CSI feedback, a frequency domain granularity of a CSI, and a feedback moment corresponding to a type used to feed back the CSI feedback And the upstream channel type of the CSI feedback.
- the frequency domain granularity of the CSI shown in this embodiment includes a subband index of CSI feedback and/or a size of a subband that performs CSI feedback.
- This embodiment does not limit the feedback time and the type of CSI feedback.
- the type set of the CSI feedback includes at least two types of CSI feedback shown below:
- RI, PMI, CQI interference power, interference covariance matrix, channel covariance matrix, channel covariance matrix, CQI, Beam selection information; a factor synthesized between each Beam, used to indicate that the user equipment performs display feedback Information and indication information for instructing the user equipment to perform implicit feedback.
- the base station can indicate the type of CSI feedback fed back by the user equipment according to the specific scenario and the scheduling requirement, and the feedback time, thereby reducing feedback and feedback of unnecessary feedback content.
- the delay increases the efficiency of information transmission between the base station and the user equipment.
- the type of the target CSI feedback may correspond to different feedback moments.
- the type of the target CSI feedback is any one of at least two types of the CSI feedback included in the type set of the CSI feedback.
- the type of the target CSI feedback is RI and CQI.
- the user equipment can determine, according to the dynamic signaling, a feedback moment for feeding back a type of any one of the at least two types of target CSI feedbacks of the target CSI feedback.
- the feedback moments of each of the target CSI feedback types are independently configured.
- each type of the target CSI feedback may have the same feedback moment.
- the dynamic signaling may indicate the RI and the CQI. Both are fed back at the same n+p time.
- the example of the n+p time is not specifically limited, and the n+p time may represent the n+pth subframe or the n+pth OFDM symbol, or the n+pth slot, n, p is a positive integer.
- each type of the target CSI feedback may have different feedback moments, that is, different types of target CSI feedbacks have different feedback moments.
- the dynamic signaling may indicate that the RI is at n+.
- the p1 time feedback, the CQI is fed back at the time n+p2.
- the example of the n+p1, n+p2 time is not specifically limited, and the n+p1, n+p2 time can represent the n+p1 subframe. Or n+p1 OFDM symbols, or n+p1 slots, n+p2 subframes or n+p2 OFDM symbols, or n+p2 slots, n, p1, p2 are positive integers.
- the type set of the CSI feedback includes multiple types of the target CSI feedback, at least two types of target CSI feedback types of the plurality of target CSI feedback types have The same feedback moment.
- the dynamic signaling may be The indication RI and the channel covariance matrix are fed back at the time n+p1, and the CQI is fed back at the time n+p2, and n, p1, and p2 are as described above, and details are not described herein again.
- the user equipment determines, according to the dynamic signaling, a feedback moment for feeding back a type of the target CSI feedback of the target CSI feedback as a target feedback moment, where the target feedback is
- the time includes at least two different moments, such as the type of CSI feedback for a certain target, and feedback at multiple times may increase the reliability of its transmission.
- the dynamic signaling indicates that the type of the target CSI feedback has at least two different feedback moments.
- the dynamic signaling may indicate that the RI is at the time n+p1. Feedback is performed at both times and n+p2.
- the user equipment is further configured to perform reference signal according to the dynamic:
- the base station sends the reference signal configuration information to the user equipment by using the dynamic signaling, so that the user equipment acquires the reference signal configuration information according to the dynamic signaling.
- the user equipment determines at least one reference signal according to the dynamic signaling configuration information, where the at least one reference signal configuration information is used to configure the at least one reference signal.
- the reference signal of the at least one reference signal corresponds to a type of the at least one CSI feedback included in the type set of the CSI feedback, so that the type of CSI feedback that the user equipment associates according to the reference signal is based on the
- the reference signal is channel measured to obtain the type of the CSI feedback and feedback is performed.
- each of the reference signals may correspond to a different CSI feedback type included in the CSI feedback type set, or one of the reference signals may correspond to at least two included in the CSI feedback type set.
- CSI feedback type may correspond to a different CSI feedback type included in the CSI feedback type set, or one of the reference signals may correspond to at least two included in the CSI feedback type set.
- each of the reference signals configured by the user equipment and their corresponding CSI feedback types are independently configured.
- the user equipment determines, according to the dynamic signaling, that the type of the target CSI feedback is RI, and determines that the type of the other target CSI feedback is CQI, and the base station sends the location to the user equipment at time n. Dynamic signaling.
- the user equipment acquires reference signal configuration information according to the dynamic signaling, and performs reference signal configuration according to the reference signal configuration information, so that different reference signals correspond to different CSI feedback types.
- one reference signal may correspond to at least two CSI feedback types.
- the user equipment may configure the first reference signal as a first CSI-RS (channel state information reference signal) in the same dynamic signaling, and the CSI feedback type corresponding to the first CSI-RS may be RI (rank indication), the user equipment may also configure the second reference signal as the second CSI-RS configuration 2 in the dynamic signaling, and configure the second
- the CSI feedback type corresponding to the CSI-RS may be a CQI (channel quality indication).
- the base station is further configured to indicate, by using the dynamic signaling, the uplink channel type of the CSI feedback by the user equipment.
- the base station may notify the user equipment of the uplink channel type configuration information of the CSI feedback by using the dynamic signaling, and the user equipment determines, according to the dynamic signaling, configuration information of an uplink channel type of the at least one CSI feedback. Determining, by the user equipment, the uplink channel type of the at least one CSI feedback according to the uplink channel type configuration information of the at least one CSI feedback, where the at least one CSI feedback uplink channel type configuration information is used to configure the at least one CSI feedback Upstream channel type;
- Any one of the at least one feedback channel corresponds to a type of at least one CSI feedback included in the set of types of the CSI feedback.
- the uplink channel type of the CSI feedback corresponding to each CSI feedback type configured by the user equipment is independently configured.
- the user equipment determines, according to the dynamic signaling, that the type of the target CSI feedback is RI, and determines that the type of the other target CSI feedback is CQI, and the base station sends the location to the user equipment at time n. Dynamic signaling.
- the user equipment performs the CSI feedback uplink channel type configuration according to the dynamic signaling, so that different CSI feedback types correspond to independent CSI feedback uplink channel types.
- one CSI feedback type may also correspond to an uplink channel type of at least two CSI feedbacks.
- different feedback channels are used as examples for different CSI feedback types.
- the user equipment may configure the first CSI feedback type as the RI, and configure the uplink channel type of the corresponding CSI feedback as the uplink channel type PUCCH channel of the first CSI feedback, and the user equipment may also be configured.
- the second CSI feedback type is CQI
- the corresponding uplink channel type of the CSI feedback is the uplink channel type PUSCH of the second CSI feedback.
- the PUCCH and the PUSCH described in the LTE are taken as an example, and other applications such as 5G are used.
- the uplink channel type of the CSI feedback may also be other uplink channel types used for feedback CSI type;
- the configured feedback channel is a PUCCH
- multiple users can share the PUCCH.
- the configured feedback channel is a PUSCH
- the user enjoys the exclusive resource in the PUSCH.
- the uplink channel type of the first CSI feedback is characterized in that the multi-user shares the channel, for example, by means of code division; the uplink channel type of the second CSI feedback is a single-user scheduling manner, and multi-user sharing is not performed on the channel.
- the uplink channel type of the first CSI feedback and the uplink channel type of the second CSI feedback may also have different numerologies, such as different subcarrier spacings and symbol lengths.
- the base station performs scheduling according to the first CSI that can be fed back by the user equipment, and determines configuration information of the second measurement pilot according to the first CSI, and the user equipment can receive according to the The second measurement pilot to the base station feeds back a second CSI to enable the base station to perform adaptation of the link according to the second CSI.
- the user equipment feeds back the first CSI to the base station according to the first measurement pilot, and the base station is configured according to the first measurement.
- the first CSI determines configuration information of the second measurement pilot, so that the base station performs scheduling and link adaptation according to the second CSI.
- the specific application scenario below illustrates how the user equipment specifically determines the second measurement pilot according to the measurement signal defined in the measurement process:
- the user equipment that performs data communication with the base station is used as the first user equipment and the second user equipment, and it is to be clarified that the user equipment that can perform data communication with the base station is used in this embodiment.
- the quantity is not limited;
- the base station does not pre-code the first measurement pilot
- the first user equipment according to the PMI corresponding to the PMI of the first measurement pilot feedback is W1
- the second user equipment is configured according to the The precoding matrix corresponding to the PMI of the first measurement pilot feedback is W2.
- the base station performs a ZF operation or other algorithm according to W1 and W2 to obtain a first user equipment, and the second user equipment performs multi-user MIMO system (Multiple-Input Multiple-Output) pairing.
- the precoding matrices are respectively W1', W2'. and W1', W2' precodes the second measurement pilots of the first user equipment and the second user equipment, respectively.
- the first measurement pilot is a precoded pilot, it is assumed that the first measurement pilot has M ports, or M resources, and each port corresponds to one beam direction.
- the best BI of the first user equipment according to the first measurement pilot feedback is BI 0, and the best BI of the second user equipment according to the first measurement pilot feedback is BI 1;
- the base station performs a ZF or other algorithm according to BI 0, BI 1, to obtain a first user equipment, and the second user equipment performs a multi-user MIMO system pairing beam direction BI 0 ' and BI 1 ' respectively, and adopts BI 0 ', BI
- the 1' beam corresponding pair precodes the second measurement pilots of the first user equipment and the second user equipment, respectively.
- the following describes how the user equipment receives the second measurement pilot according to a specific application scenario.
- the second measurement pilot may be configured in a dynamic signaling manner, or in a predefined manner, or in a high-level configuration manner;
- the second measurement pilot may be a CSI-RS, or a DMRS.
- the user equipment determines the second measurement pilot by using first type DCI signaling.
- the base station configures the second measurement pilot by using the first type of DCI signaling
- the base station needs to set the pattern of the second measurement pilot, the port information, the location of the PRB pair in the frequency domain, and the location of the time domain in the process of configuring the second measurement measurement pilot.
- the user equipment is notified in the first type of DCI.
- the first type of DCI signaling shown in this application scenario is specifically used to configure the second measurement pilot.
- the first user equipment UE1 is paired with the third user equipment UE3 in the first PRB pair1.
- UE1 adopts CSI-RS port 15
- UE3 adopts CSI-RS port 16.
- the UE1 is paired with the fourth user equipment UE4 in the second PRB pair 2;
- UE1 adopts CSI-RS port 16
- UE4 adopts CSI-RS port 15.
- the base station needs to notify the location of the PRB pair where the second measurement pilot is located by the user equipment by using the first type of DCI signaling;
- the base station notifies the location of the PRB pair in which the second measurement pilot of the UE3 is located to be PRB pair1 by using the first type of DCI signaling, and the port number is 16 in the PRB pair.
- the base station notifies the location of the PRB pair in which the second measurement pilot of the UE4 is located as the PRB pair2 by using the first type of DCI signaling, and the port number in the PRB pair is 15 respectively.
- each UE needs to use such signaling to perform the second measurement pilot by using the first type DCI.
- the advantage of the notification mode is that each UE can clearly know the information of its second measurement pilot, so that it can more accurately measure the information of the channel it needs to measure (time domain frequency domain information), for example, UE1 knows that it only needs to measure.
- the first type of DCI may be the same size as one of the DCI formats in the DL grant or the UL grant in the transport mode, but is scrambled by using different RNTIs.
- Another application scenario is exemplified by how the user equipment receives the second measurement pilot:
- the base station may configure the second measurement pilot by using the second type of DCI signaling
- the second type of DCI signaling is not specifically used for configuring DCI signaling of the second measurement pilot, but carries information for data scheduling. If the second type of DCI signaling is sent in the nth subframe, Then the scheduled data is sent in the nth subframe;
- the second type of DCI signaling is the signaling of the scheduling data, and therefore the resource allocation information of the data is definitely included, and the resource allocation information, that is, the PRB pair in which the data is scheduled, for example, PRB pair 1, PRB pair3, RPB pair i
- the second measurement pilot is used in the scenario of the application scenario, and the base station does not need to add additional signaling to notify the frequency domain information of the second measurement pilot.
- the following describes how the user equipment determines the port information of the second measurement pilot
- each subband informs the user of the port number of the device and the port number of the user device with which it is paired, a very large signaling overhead is required.
- UE1 in PRB pair 1 adopts port port 15, and UE3 paired with it adopts port 16;
- the UE1 in the PRB pair2 adopts the port 16, and the UE4 that is paired with the port 4 adopts the port 15.
- the port number of the UE and the port number of the UE paired with it are obtained in a recessive manner, specifically: assuming a fixed number Second, the pilot pattern is measured, and assuming that at most two user equipments are paired, only two CSI-RS ports are required in each PRB pair, assuming that the two ports are port 15, port 16;
- the first user equipment UE1 first assumes that port 15 is a signal, port 16 is an interference, and the signal to noise ratio SINR1 is measured. Then, UE1 assumes that port 16 is a signal, port 15 is an interference, and that SINR2 is measured. UE1 is in each resource allocated PRB pair. The SINR1, SINR2, or the index of the corresponding selected port port with a large SINR is reported, and the corresponding SINR is reported.
- the base station may determine the port information of the second measurement pilot according to the index of the port port reported by the UE1 and the corresponding SINR, and notify the user equipment of the determined port information of the second measurement pilot. .
- the user equipment in the data transmission method of the present invention can measure the measurement pilots by means of restrictive measurement, so that the user equipment can improve the accuracy of the measurement, and The base station reacts to the real signal.
- one measurement process includes pilots of M measurement signals and K pilots for measuring interference;
- M is an integer greater than or equal to 1, and K is an integer greater than one;
- the second measurement pilot shown in this embodiment includes pilots of M measurement signals and K pilots that measure interference;
- the K pilots that measure interference adopt an independent restrictive measurement configuration
- the pilots of the M measurement signals are configured with independent limiting measurements.
- the restrictive measurement refers to limiting the range of resources of the moving average that allows measurement.
- the triggering reason for using the restricted measurement in this embodiment may be: the beam direction of the measurement pilot sent by the base station to the user equipment is changed, and if the user equipment performs channel measurement according to the pilot whose beam direction has changed, The average signal to noise ratio SNR that the user equipment feeds back to the base station through the CSI is inaccurate;
- FIG. 5 illustrates how the user equipment can accurately measure the interference if the direction of the beam changes.
- the change of the beam direction of the first user equipment UE1 in the first cell cell1 with time is as shown in FIG. 4, that is, at time t0 to t3, the beam is B0, and at time t4 to t6, the beam is B4. At time t7 to t12, the beam is B0.
- the change of the beam of the other user equipment is different.
- the second user equipment UE2 in the same cell as the UE1 is taken as an example.
- the change of the beam of the UE2 is as shown in FIG. 4, that is, at time t0 to t3, the beam is B1. From t4 to t5, the beam is B2. At t6 to t12, the beam is B1.
- the changes of UE3 and UE4 beams please refer to Figure 5, and details are not described here.
- the base station If the UE1 and the UE2 are to be paired in the data transmission process, as shown in FIG. 5, the base station generates the second measurement pilot of the B4 for the UE1 at the time t4, and the base station sends the measurement pilot of the B2 used by the UE2, and Assuming that the base station is to pair UE1 and UE2 at the time after t4, it is necessary to know the instantaneous interference of UE2 to UE1, and the base station measures the time window of the signal of UE1 as t4, t5, t6, because within this time window, UE1 The beam has not changed.
- the time window for the base station to measure the instantaneous interference of UE2 to UE1 is t4, t5, because within this time window, the beam of UE2 does not change.
- the time window in which the base station measures randomized interference can be arbitrarily long or not restricted.
- the measurement resource for measuring instantaneous interference is different from the measurement resource for measuring randomized interference
- pilots of M measurement signals and K pilots for measuring interference are configured;
- the pilots of the M measurement signals are NZP CSI-RS resource m0, NZP CSI-RS resource m1, ... NZP CSI-RS resource mM-1.
- Each NZP (non-zero power) CSI-RS The configuration of resource m0 includes its number of ports and time-frequency resource location.
- the user equipment is capable of synthesizing M1 signals out of M signal measurements obtained by pilot measurement of the M measurement signals to determine a CQI, where M1 is an integer greater than 1 and less than or equal to M.
- the K pilots that measure interference may all be non-zero power pilots, or all of them are zero power pilots, or the K pilots that measure interference include non-zero power pilots and zero power pilots.
- the K pilots for measuring interference are NZP CSI-RS resource k0, NZP CSI-RS resource k1, ... NZP CSI-RS resource kK-1;
- the K pilots that measure interference are ZP (zero power zero power) CSI-RS resource k0, ZP CSI-RS resource k1, ... ZP CSI-RS resource kK;
- K pilots that measure interference are K1 ZP (zero power zero power) CSI-RS resource k0, ZP CSI-RS resource k1,...ZP CSI-RS resource kK1-1.K2 NZP CSI-RS resource k K1 , ZP CSI-RS resource k1,...ZP CSI-RS resource kK-1.
- At least one of the K measured interference pilots is a restricted measurement configured to perform interference measurement is off.
- the user equipment is capable of synthesizing K1 interference measurement quantities among the K interferences obtained by the K measurement interference measurement to determine a CQI, and K1 is an integer greater than 1 and less than or equal to K.
- the interference of the K pilot-measured pilot measurements is different types of interference, so its restrictive measurement can be K independent configurations, for example, for K1 of UE1, as shown in Figure 5, for example by NZP CSI -RS resource k0, NZP CSI-RS resource k1 measures interference, then NZP CSI-RS resource k0 corresponds to measuring the first type of interference (or instantaneous interference).
- the first type of interference requires short-term restrictive measurement, for example, the measurement is For the interference in the same cell, UE2 and UE1 belong to the same cell1, and the time window of the restricted measurement of the NZP CSI-RS resource k0 is set to t4 to t5 (t4 to t5).
- the beam of the B2 of the UE2 is measured to the beam of the B4 of the UE1.
- Interference, and cell2 is sent to UE3.
- the signal sent by cell3 to UE4 to UE1 is inter-cell interference.
- This type of interference is randomized interference. It takes a long time to obtain randomized interference. Therefore, NZP CSI-RS resource is used.
- K1 corresponds to the measurement of the second type of interference, that is, randomized interference, and the second type of interference can use the restrictive measurement time window with a relatively large window length, or the restricted measurement of the NZP CSI-RS resource k1 is closed.
- the configuration of the independent restrictive measurement comprises at least one of the following:
- the signaling type of the independent configuration restriction measurement includes a configuration for performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is notified by using UL grant signaling, or a DL grant letter. make.
- the signaling type of the independent configuration restriction measurement includes a configuration for performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is notified by using UL grant signaling, or a DL grant letter. make.
- the measurement process configures pilots of the N port, wherein pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference;
- the measurement process is configured with a measurement pilot including N ports, wherein a pilot of one port is used to measure a signal, a pilot of a target port is used to measure interference, and measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, the user equipment for obtaining N CQIs according to measurement pilot measurements of the N ports.
- the measurement process is configured with a measurement pilot including N ports, wherein pilots of N1 ports are used for measuring signals, pilots of N-N1 ports are used for measuring interference, and N is an integer greater than 1.
- N1 is an integer greater than or equal to 1 and less than or equal to N.
- the pilots used for measuring signals in the second measurement pilot are collectively referred to as a third pilot, and the pilots used to measure interference in the second measurement pilot are used.
- the fourth pilot Collectively referred to as the fourth pilot;
- the base station has the same location/predefined fourth measurement pilot time-frequency resource location in all cells.
- the third measurement pilot is staggered in time-frequency resource locations in at least two cells.
- the time-frequency resources of the fourth measurement pilots of cell1, cell2, and cell3 are aligned, and cell1 transmits the time-frequency resource location of the third measurement pilot, and cell2 and cell3 are muting, that is, the base station transmits the same with cell1.
- the time-frequency resource of the three measurement pilots does not transmit a signal at the same position.
- the base station does not send a signal at the same position as the time-frequency resource of the third measurement pilot that is sent by the cell 1, the interference of the cell 3 and the cell 3 to the third measurement pilot sent by the cell 1 can be avoided, so that the third measurement pilot of the cell 1 is measured.
- the signal is more accurate.
- cell2 sends the time-frequency resource location of the third measurement pilot, and cell1 and cell3 are muting, that is, no signal is transmitted, and interference of transmitting the third measurement pilot to cell2 can be avoided.
- the third measurement pilot measurement is obtained.
- the signal is very accurate.
- the foregoing description of how the user equipment performs signal measurement and interference measurement according to the second measurement pilot is an example, and is not limited, and may perform signal measurement and interference measurement in the following manners;
- the time-frequency resource positions of the second measurement pilots of all cells are the same, and the number of ports is also the same.
- the user equipment determines that the power ratio of the power of each pilot port measurement signal and the data is X, X and N port frequencies.
- the number of sub-multiplexed subcarriers is related or fixed.
- the user equipment determines that the power ratio of the interference power measured by each pilot port and the interference of the data received by the user equipment is Y, Y and N ports are frequency division multiplexed.
- the number of subcarriers is related or fixed.
- Each pilot port measures the power of the signal and the power ratio X of the data and the power ratio Y of each pilot port measurement interfered with the data received by the user equipment.
- the second measurement pilot uses four ports.
- port 0 and port 1 use the same two resource particle REs, and adopt code division multiplexing, for example, port 0 adopts (1, 1), port. 1 adopts the (1,-1) OCC code.
- port 2 and port 3 use the same two REs, and adopt code division multiplexing. For example, port 2 adopts (1,1) and port3 adopts (1,- 1) OCC code.
- the second measurement pilot port used is port0 and port1
- the second measurement pilot sent by the neighboring area adopts port0.
- the base station ensures that the power ratio of each port of the second measurement pilot and each layer of data transmitted is 2, that is, 3 dB.
- I 1 in 2I 1 is interference of the first two layers of layer 0 and layer 1 assuming interference of the user's data, because the power ratio of each port of the second measurement pilot and each layer of data transmitted is 2, thus measuring The interference obtained is 2I 1 .
- the second measurement pilot is transmitted on a resource that uses at least two frequency divisions. If the resource is transmitted on the N frequency division, the power ratio of each second measurement pilot port to the data is N.
- the second measurement pilot port used is port0 and port1
- the second measurement pilot sent by the neighboring cell adopts port0, port1.
- port2, port3 then ensure that the power ratio of each port of the second measurement pilot and each layer of data transmitted is 2, that is, 3dB.
- I 1 in 2I 1 is the interference of the first two layers of layer 0 and layer 1 assuming interference of the user's data, because the power of the measurement pilot is twice the data, so the measured interference is 2I 1 , and in port 2 and
- I 2 in 2I 2 is the interference of the latter two layers of layer 2 and layer 3 assuming interference with the user's data.
- the total interference measured can be obtained by the following method.
- the second measurement pilot is transmitted on a resource that uses at least two frequency divisions. If a resource with N frequency divisions is used for transmission, the power ratio of each second type measurement pilot port to the data is N.
- the user equipment includes:
- the determining unit 901 is configured to determine, according to the type of the measurement process, a channel state information CSI type of the measurement process, where the type of the measurement process includes a pilot of the measurement signal and a pilot of the measurement interference, and different types of measurement processes The type of channel state information CSI corresponding to the measurement process and/or feedback is different;
- the feedback unit 902 is configured to perform measurement and feedback according to the determined measurement process and/or the type of CSI fed back.
- the user equipment can determine different measurement processes and feedback channel state information CSI types according to different types of measurement processes, so that the user can improve the base station by feeding back more accurate downlink channel information to the base station.
- the user equipment includes:
- the determining unit 1001 is configured to determine a measurement process and a feedback channel state information CSI type according to a type of the measurement process, where the type of the measurement process includes a pilot of the measurement signal and a pilot of the measurement interference, and different types of measurement processes The type of channel state information CSI corresponding to the measurement process and/or feedback is different;
- the feedback unit 1002 is configured to perform measurement and feedback according to the determined type of CSI of the measurement process and/or feedback.
- the determining unit 1001 includes:
- the first determining module 10011 is configured to: if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, determine that the CSI type of the feedback is the first CSI;
- the second determining module 10012 is configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, determine that the CSI type of the feedback is the second CSI, and the first CSI includes the feedback amount and The second CSI contains different amounts of feedback.
- the first measurement pilot that is determined by the first determining module 10011 is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is periodically sent. Pilot
- the second measurement pilot that has been determined by the second determining module 10012 is a precoded pilot, and/or the second measurement pilot is aperiodicly transmitted, and/or the second measurement guide
- the frequency is triggered by the base station, and/or the second measurement pilot is transmitted by a subband.
- the first CSI that is determined by the first determining module 10011 includes a level indication RI, a precoding matrix indication PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI that the second determining module 10012 has determined includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the determining unit 1001 is further configured to: determine that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is greater than 1. For the number, then the K pilots that measure interference employ a configuration of independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be made.
- the determining unit 1001 is further configured to: determine that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1,
- the pilots of the M measurement signals are arranged in an independent limiting measurement, which is defined as the range of resources that allow for the sliding average of the measurements to be made.
- the determining unit 1001 is further configured to: determine that the configuration of the independent restrictive measurement includes at least one of the following:
- the determining unit 1001 further includes:
- the third determining module 10013 is configured to synthesize K1 interference measurement quantities of the K interferences obtained by using the pilot measurement of the K measurement interferences to determine a CQI, where K1 is an integer greater than 1 and less than or equal to K.
- the fourth determining module 10014 is configured to synthesize the M1 signals in the M signal measurements obtained by using the pilot measurements of the M measurement signals to determine a CQI, where M1 is an integer greater than 1 and less than or equal to M.
- the signaling type of the independent configuration restriction measurement determined by the determining unit 1001 includes a configuration for performing restriction measurement independently by using high layer signaling or dynamic signaling, where the dynamic signaling is by using a UL grant. Signaling, or DL grant signaling.
- the determining unit 1001 is further configured to: determine that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K pilots that measure interference include non-zero power. Pilot and zero power pilots.
- the determining unit 1001 is further configured to: determine that at least one of the K measurement interference pilots is a restricted measurement configured to perform interference measurement is off.
- the determining unit 1001 is further configured to: determine that the measurement process configures pilots of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the determining unit 1001 is further configured to: determine that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used for measuring a signal, and a pilot of a target port is used for measurement. Interference, the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports. .
- the determining unit 1001 is further configured to: determine that the measurement process is configured with a measurement pilot that includes N ports, where pilots of the N1 ports are used for measuring signals, and N-N1 ports are guided.
- the frequency is used to measure interference
- N is an integer greater than 1
- N1 is an integer greater than or equal to 1 and less than or equal to N.
- the determining unit 1001 is further configured to: when determining the CQI, the user equipment determines that the power ratio of each pilot port measurement signal and the data is X, X, and N port frequency divisions.
- the number of subcarriers used is related or fixed.
- the determining unit 1001 is further configured to: when determining, calculating, by using, the CQI, the user equipment determines that the power ratio of the interference power measured by each pilot port and the data received by the user equipment is Y.
- Y is related to the number of subcarriers of frequency division multiplexing of N ports or is fixed.
- the determining unit 1001 is further configured to: determine a power ratio of each pilot port measurement signal and a power ratio X of the data, and measure interference power of each pilot port and data received by the user equipment.
- the power is equal to Y.
- the determining unit 1001 is further configured to determine that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the user equipment further includes a sending unit 1003;
- the sending unit 1003 is configured to perform the second CSI feedback in a second time slot of a subframe in which the second measurement pilot is located.
- the determining unit 1001 is further configured to: determine, according to the second measurement pilot, the reference resource of the second CSI to the reporting time interval is X1, according to the first measurement pilot measurement The time interval X2 of the reference resource of the first CSI to the reporting time, where X1 ⁇ X2, the reference resource is a subframe sent by the second measurement pilot.
- the determining unit 1001 is further configured to: determine, according to the second measurement pilot, that the reference resource of the second CSI to the reporting time interval is X1, where X1 is configured for high layer signaling or For dynamic signaling, the reference resource is a subframe that is sent by the second measurement pilot.
- the determining unit 1001 is further configured to: determine, according to the second measurement pilot, that the reference resource to the reporting time interval is X1, where X1 and the second measurement pilot included in one measurement process
- the number of resources is related to the number of ports included in each of the second measurement pilots, and the reference resource is a subframe transmitted by the second measurement pilot.
- the user equipment shown in this embodiment specifically performs the data transmission method. Please refer to the embodiment shown in FIG. 1 to FIG. 8. The specific implementation process is not described in this embodiment.
- the base station includes:
- the indicating unit 1101 is configured to indicate a type of the measurement process to the user equipment, where the type of the measurement process is used to enable the user equipment to determine a measurement process and a channel state information CSI type that is fed back according to a type of the measurement process, where the measurement process is performed.
- the types include pilots for measuring signals and pilots for measuring interference, and different types of measurement processes correspond to different types of measurement processes and/or feedback channel state information CSI;
- the receiving unit 1102 is configured to receive the feedback sent by the user equipment, where the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the user equipment can determine different measurement processes and feedback channel state information CSI types according to different types of measurement processes, so that the user can improve the base station by feeding back more accurate downlink channel information to the base station.
- the structure of the base station is further described in detail below with reference to FIG. 12:
- the base station includes:
- the indicating unit 1201 is configured to indicate a type of the measurement process to the user equipment, where the type of the measurement process is used to enable the user equipment to determine a measurement process and a feedback channel state information CSI type according to a type of the measurement process, where the measurement process
- the types include pilots for measuring signals and pilots for measuring interference, and different types of measurement processes correspond to different types of measurement processes and/or feedback channel state information CSI;
- the receiving unit 1202 is configured to receive the feedback sent by the user equipment, where the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the receiving unit 1202 includes:
- the first receiving module 12021 is configured to: if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, receive the CSI type sent by the user equipment as the first CSI;
- the second receiving module 12022 is configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, receive the CSI type sent by the user equipment as a second CSI, where the first CSI includes The amount of feedback is different from the amount of feedback included in the second CSI.
- the indicating unit 1201 is further configured to: indicate that the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is periodically sent. Pilots; the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot is the base station The triggered, and/or the second measurement pilot is transmitted by the subband.
- the first CSI that the receiving unit 1202 has received includes a level indication RI, a precoding matrix indicating PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the receiving unit 1202 has received the second CSI including RI, PMI, CQI, or the second CSI includes CQI, or the second CSI includes an index BI, RI, CQI indicating the selected beam.
- the indicating unit 1201 is further configured to: indicate that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is an integer greater than 1,
- the K pilots that measure interference employ a configuration of independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be made.
- the indicating unit 1201 is further configured to: indicate that a measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1,
- the pilots of the M measurement signals are arranged in an independent limiting measurement, which is defined as the range of resources that allow for the sliding average of the measurements to be made.
- the indicating unit 1201 is further configured to indicate the configuration of the independent restrictive measurement. Includes at least one of the following:
- the receiving unit 1202 is further configured to: receive the CQI sent by the user equipment, where the CQI is the K interference obtained by the user equipment according to the pilot measurement of the K measurement interferences.
- K1 interference measurement quantities are synthesized to determine a CQI, and K1 is an integer greater than 1 and less than or equal to K.
- the receiving unit 1202 is further configured to receive a CQI sent by the user equipment, where the CQI is measured by using M signals obtained by the user equipment according to pilot measurements of the M measurement signals.
- the M1 signals are synthesized to determine a CQI, and M1 is an integer greater than 1 and less than or equal to M.
- the indication unit 1201 is further configured to: indicate that the signaling type of the independent configuration restriction measurement comprises a configuration of performing restriction measurement by using high layer signaling or dynamic signaling, where the dynamic signaling is UL grant signaling, or DL grant signaling.
- the indicating unit 1201 is further configured to: indicate that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K pilots that measure interference include non-zero power. Pilot and zero power pilots.
- the indicating unit 1201 is further configured to: at least one of the pilots that indicate the K measurement interferences is closed, and the restrictive measurement configured to perform interference measurement is off.
- the indication unit 1201 is further configured to: instruct the measurement process to configure a pilot of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the indicating unit 1201 is further configured to indicate that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, and a pilot of a target port is used to measure Interference, the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports. .
- the indicating unit 1201 is further configured to indicate that the measurement process is configured to include There are N ports of measurement pilots, where the pilots of N1 ports are used to measure signals, the pilots of N-N1 ports are used to measure interference, N is an integer greater than 1, and N1 is greater than or equal to 1 and less than or equal to N. Integer.
- the indicating unit 1201 is further configured to: indicate a power ratio of each pilot port measurement signal and a power ratio X of the data, and measure interference power of each pilot port and data received by the user equipment.
- the power is equal to Y.
- the indicating unit 1201 is further configured to indicate that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the receiving unit 1202 is further configured to receive, by using the second CSI feedback sent by the user equipment, in a second time slot of the subframe in which the second measurement pilot is located.
- the indicating unit 1201 is further configured to determine a time interval X1, where the X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time. Determining a time interval X2, where the X2 is a time interval from the reference resource of the first CSI measured by the user equipment according to the first measurement pilot to the reporting time;
- the reference resource is a subframe that is sent by the second measurement pilot.
- the indicating unit 1201 is further configured to determine a time interval X1, where the X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time.
- the X1 is configured for high-level signaling or configured by dynamic signaling, and the reference resource is a subframe that is sent by the second measurement pilot.
- the indicating unit 1201 is further configured to determine a time interval X1, where the X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time.
- X1 is related to the number of resources of the second measurement pilot included in one measurement process and the number of ports included in each of the second measurement pilots, and the reference resource is a sub-send transmitted by the second measurement pilot frame.
- the user equipment includes: a transmitter 1301, a receiver 1302, and a processor 1303. And a memory 1304; wherein the processor 1303 can be one or more, which is illustrated by way of example in the embodiment:
- the transmitter 1301, the receiver 1302, the memory 1304, and the processor 1303 are connected through a bus.
- other connection manners may be used.
- the specific connection manner is not limited in this embodiment.
- the user equipment may have more or less components than those shown in FIG. 13, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
- the processor 1303 is configured to determine a measurement process and a feedback channel state information CSI type according to a type of the measurement process, where the type of the measurement process includes a pilot for measuring a signal and a pilot for measuring interference, and different types of The measurement process corresponding to the measurement process and/or the type of channel state information CSI fed back are different;
- the transmitter is configured to perform measurement and feedback based on the determined measurement process and/or the type of feedback CSI.
- the transmitter is configured to: if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, the CSI type of the feedback is a first CSI;
- the transmitter 1301 is configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, the CSI type of the feedback is the second CSI, and the first CSI includes the feedback amount and the first The two CSIs contain different amounts of feedback.
- the processor 1303 is configured to determine that the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is periodically sent. Pilot
- the processor 1303 is configured to determine that the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot Triggered for the base station, and/or the second measurement pilot is transmitted by a subband.
- the processor 1303 is configured to determine that the first CSI includes a level indication RI, a precoding matrix indication PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the processor 1303 is configured to determine that one measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is an integer greater than 1, then K
- the pilots that measure interference employ a configuration of independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be taken.
- the processor 1303 is configured to determine that one measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1, then M
- the pilots of the measurement signals are in a configuration of independent limiting measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be made.
- the processor 1303 is configured to determine that the configuration of the independent restrictive measurement includes at least one of the following:
- the processor 1303 is configured to determine, according to the K1 interference measurement quantities of the K interferences obtained by the K measurement interference measurement, to determine a CQI, where K1 is greater than 1 and less than or equal to K. Integer.
- the processor 1303 is configured to determine, according to the M1 signals in the M signal measurements obtained by using the pilot measurements of the M measurement signals, to determine a CQI, where M1 is an integer greater than 1 and less than or equal to M. .
- the processor 1303 is configured to determine that the signaling type of the independent configuration restriction measurement comprises a configuration of performing restriction measurement independently by using high layer signaling or dynamic signaling, where the dynamic signaling is through UL. Grant signaling, or DL grant signaling.
- the processor 1303 is configured to determine that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K measurement interference pilots include a non-zero power guide. Frequency and zero power pilots.
- the processor 1303 is configured to determine that at least one of the K measurement interference pilots is included One is that the restrictive measurement configured to make interference measurements is off.
- the processor 1303 is configured to determine that the measurement process configures pilots of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the processor 1303 is configured to determine that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, and a pilot of a target port is used to measure interference.
- the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the processor 1303 is configured to determine that the measurement process is configured with a measurement pilot that includes N ports, where pilots of the N1 ports are used for measuring signals, and pilots of N-N1 ports are used.
- N is an integer greater than 1
- N1 is an integer greater than or equal to 1 and less than or equal to N.
- the processor 1303 is configured to determine, when the user equipment calculates the CQI, the user equipment determines that a power ratio of each pilot port measurement signal and data is X, X, and N ports.
- the number of frequency division multiplexed subcarriers is related or fixed.
- the processor 1303 is configured to determine, when the user equipment calculates the CQI, the user equipment determines the power of each pilot port to measure interference and the interference power of data received by the user equipment.
- the ratio is Y, Y is related to the number of subcarriers of frequency division multiplexing of N ports or is fixed.
- the processor 1303 is configured to determine, that the power of each pilot port measurement signal and the power ratio of the data X and each pilot port measure the interference power and the interference of the data received by the user equipment.
- the power is equal to Y.
- the processor 1303 is configured to determine that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the processor 1303 is configured to determine that the second CSI feedback is performed in a second time slot of a subframe in which the second measurement pilot is located.
- the processor 1303 is configured to determine, according to the second measurement pilot, the reference resource of the second CSI to the reporting time interval is X1, according to the first measurement pilot measurement The time interval X2 of the reference resource of the first CSI to the reporting time, where X1 ⁇ X2, the reference resource is a subframe transmitted by the second measurement pilot.
- the processor 1303 is configured to determine, according to the second measurement pilot, the reference resource of the second CSI to the reporting time interval is X1, where X1 is configured or dynamically The signaling is configured, and the reference resource is a subframe that is sent by the second measurement pilot.
- the processor 1303 is configured to determine, according to the second measurement pilot, that the reference resource to the reporting time interval is X1, where X1 and the second measurement pilot included in one measurement process are included.
- the number of resources is related to the number of ports included in each of the second measurement pilots, and the reference resource is a subframe transmitted by the second measurement pilot.
- the base station includes: a transmitter 1401, a receiver 1402, a processor 1403, and a memory 1404.
- the processor 1403 may be one or more.
- the transmitter 1401, the receiver 1402, the memory 1404, and the processor 1403 are connected through a bus.
- other connection manners may be used.
- the specific connection manner is not limited in this embodiment.
- the base station may have more or less components than those shown in FIG. 14, may combine two or more components, or may have different component configurations or settings, and each component may include one Hardware, software, or a combination of hardware and software, including multiple signal processing and/or application specific integrated circuits.
- the transmitter 1401 is configured to: indicate, to the user equipment, a type of the measurement process, where the type of the measurement process is used to enable the user equipment to determine a measurement process and a channel state information CSI type that is fed back according to a type of the measurement process,
- the types of measurement processes include definitions of pilots of measurement signals and pilots that measure interference, and different types of measurement processes correspond to measurement processes and/or different types of channel state information CSI that are fed back;
- the receiver 1402 is configured to receive the feedback sent by the user equipment, where the feedback is generated by the user equipment according to the determined CSI of the measurement process and/or feedback.
- the receiver 1402 is configured to: if the pilot of the measurement signal defined in the measurement process is the first measurement pilot, the base station receives the CSI type sent by the user equipment as a first CSI;
- the receiver 1402 is configured to: if the pilot of the measurement signal defined in the measurement process is the second measurement pilot, receive the CSI type sent by the user equipment as a second CSI, where the first CSI includes The amount of feedback is different from the amount of feedback included in the second CSI.
- the processor 1404 determines that the first measurement pilot is a pre-coded pilot or a pre-coded pilot, and/or the first measurement pilot is a periodically transmitted pilot;
- the processor 1404 determines that the second measurement pilot is a precoded pilot, and/or the second measurement pilot is aperiodic, and/or the second measurement pilot is The base station triggers, and/or the second measurement pilot is transmitted by a subband.
- the processor 1404 determines that the first CSI includes a level indication RI, a precoding matrix indicates a PMI, a channel quality indicator CQI, or the first CSI includes an RI, a PMI;
- the second CSI includes an RI, a PMI, a CQI, or the second CSI includes a CQI, or the second CSI includes an index BI, RI, CQI indicating a selected beam.
- the processor 1404 determines that one measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than or equal to 1, and K is an integer greater than 1, then K measurement interferences
- the pilots are configured with independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be taken.
- the processor 1404 determines that one measurement process includes pilots of M measurement signals and K pilots that measure interference, where M is an integer greater than 1, and K is an integer greater than or equal to 1, then M measurement signals
- the pilots are configured with independent restrictive measurements, which are defined as the range of resources that allow for the sliding average of the measurements to be taken.
- the processor 1404 determines that the configuration of the independent restrictive measurement comprises at least one of the following:
- the receiver 1402 receives the CQI sent by the user equipment, where the CQI is K1 interference measurement of the K interferences obtained by the user equipment according to the pilot measurement of the K measurement interferences.
- the quantities are synthesized to determine a CQI, and K1 is an integer greater than 1 and less than or equal to K.
- the receiver 1402 receives the CQI sent by the user equipment, where the CQI is the M1 signals of the M signal measurements obtained by the user equipment according to the pilot measurement of the M measurement signals. Synthesis to determine a CQI, M1 being an integer greater than 1 and less than or equal to M.
- the processor 1404 determines that the signaling type of the independent configuration restriction measurement comprises a configuration of restrictive measurement independently by using high layer signaling or dynamic signaling, where the dynamic signaling is through UL grant signaling. Notification, or DL grant signaling.
- the processor 1404 determines that the pilots of the K measurement interferences are all non-zero power pilots, or all of the zero power pilots, or the K measurement interference pilots include non-zero power pilots and zeros. Power pilot.
- the processor 1404 determines that at least one of the K measurement interference pilots is a restricted measurement configured to perform interference measurement is off.
- the processor 1404 determines that the measurement process configures pilots of the N port, where pilots of the N1 ports are used to measure signals, and pilots of all N ports are used to measure interference.
- the processor 1404 determines that the measurement process is configured with a measurement pilot that includes N ports, where a pilot of one port is used to measure a signal, and a pilot of a target port is used to measure interference.
- the measurement pilots of the N ports include a pilot for measuring one port of the signal and a pilot of the target port, and the user equipment is configured to obtain N CQIs according to measurement pilot measurements of the N ports.
- the processor 1404 determines that the measurement process is configured with a measurement pilot that includes N ports, where pilots of N1 ports are used for measurement signals, and pilots of N-N1 ports are used for measurement. Interference, N is an integer greater than 1, and N1 is an integer greater than or equal to 1 and less than or equal to N.
- the processor 1404 determines a power ratio X of each pilot port measurement signal and a power ratio of the interference power of each pilot port and the interference of the data received by the user equipment. equal.
- the processor 1404 determines that the time-frequency resource location of the second measurement pilot is within a first time slot of one subframe.
- the receiver 1402 receives the second CSI feedback sent by the user equipment in a second time slot of the subframe in which the second measurement pilot is located.
- the processor 1404 determines that the base station determines a time interval X1, where the X1 is a time interval from the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time. ;
- the base station determines a time interval X2, where the X2 is a time interval from the reference resource of the first CSI measured by the user equipment according to the first measurement pilot to the reporting time;
- the reference resource is a subframe that is sent by the second measurement pilot.
- the processor 1404 determines a time interval X1, where X1 is a time interval from a reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time, where X1 is The high-level signaling configuration or the dynamic signaling configuration, the reference resource is a subframe that is sent by the second measurement pilot.
- the processor 1404 determines a time interval X1, where the X1 is a time interval from the reference resource of the second CSI measured by the user equipment according to the second measurement pilot to a reporting time, where X1 Associated with the number of resources of the second measurement pilot included in one measurement process and the number of ports included in each of the second measurement pilots, the reference resource is a subframe transmitted by the second measurement pilot.
- Step 1501 The base station indicates, to the user equipment, N1 reference signal resources in the set of N reference signal resources and N2 reference signal resources in the set of N reference signal resources.
- the set of N reference signal resources shown in this embodiment is a time-frequency resource, and the set of N reference signal resources is used by the user equipment according to the set of N reference signal resources. Measurement and feedback of channel state information CSI.
- the N1 reference signal resources in the set of the N reference signal resources shown in this embodiment are used to perform channel measurement, where the N2 reference signal resources in the set of N reference signal resources are used.
- the channel state information CSI is determined based on measurement of the channel and measurement of interference.
- N is a positive integer greater than or equal to 2
- N1 is a positive integer less than or equal to N
- N2 is a positive integer less than or equal to N
- the N1 reference signal resources in the set of N reference signal resources shown in this embodiment are true subsets of the N2 reference signal resources in the set of N reference signal resources, or And the N1 reference signal resources in the set of N reference signal resources are completely coincident with the N2 reference signal resources in the set of N reference signal resources.
- the N1 reference signal resources are used to perform measurement of channel information
- the N2 reference signal resources are used to perform measurement of interference information.
- the channel measurement that is, the user equipment obtains information of a signal sent by the base station to the user equipment by performing channel estimation on a non-zero power reference signal resource;
- the N2 reference signal resources in the set of N reference signal resources used for measuring interference shown in this embodiment specifically include N21 reference signal resources configured to be non-zero power and/or N22 configurations are zero power. Reference signal resource.
- the N21 is less than or equal to the N, and the N22 is less than or equal to the N.
- the user equipment obtains the first interference according to the measurement of the interference by using the N21 non-zero power reference signal resources included in the N2 reference signal resources according to the first interference measurement method, and the user equipment is also capable of passing the N2 reference signal resources.
- the included N22 zero-power reference signal resources perform interference measurement according to the second interference measurement method to obtain a second interference, and combine the first interference and the second interference to obtain total interference.
- the first interference measurement method is to measure interference on a non-zero power reference signal resource, and assume that the total signal received on the non-zero power reference signal resource is a signal and interference sent by the base station to the user equipment. And the user equipment obtains a signal sent by the base station to the user equipment by performing channel estimation on the non-zero power reference signal resource, and obtains interference by separating a signal sent by the base station to the user equipment in the total signal, where The interference is the first interference.
- the second interference measurement method is to measure interference on a zero-power reference signal resource, and assume that the signal received by the zero-power reference signal resource is interference received by user equipment interference, The interference is the second interference.
- the channel state information CSI is determined according to the measurement of the foregoing channel and the measurement of the total interference, and includes at least one of RI, PMI, CQI, interference covariance matrix, channel covariance matrix, and channel feature vector.
- the base station shown in this embodiment specifically indicates, to the user equipment, N1 reference signal resources in the set of N reference signal resources and N2 references in the set of N reference signal resources. Description of signal resources.
- the description of the specific indication process in this embodiment is an optional example, which is not limited, as long as the user equipment can determine N1 reference signal resources in the set of N reference signal resources and The N2 reference signal resources in the set of N reference signal resources may be included.
- the user equipment may determine a location of a time-frequency resource of the N1 reference signal resources in the set of N reference signal resources and a time-frequency of the N2 reference signal resources in the set of the N reference signal resources In the case of the location of the resource, the user equipment may determine the location of the time-frequency resource of the non-zero-power reference signal resource and the time-frequency resource of the zero-power reference signal resource in the set of N reference signal resources. s position.
- the following describes how the user equipment determines the location of the time-frequency resource of the reference signal resource of non-zero power:
- the base station sets, to the user, configuration information for transmitting the N1 reference signal resources in the set of N reference signal resources.
- the sending method of the configuration information may be that the base station sends the configuration information by using high layer signaling or dynamic signaling.
- the configuration information includes location information of time-frequency resources of N1 reference signal resources in the set of N reference signal resources;
- the configuration information also includes at least one of the following:
- the power information of N1 reference signal resources in the set of N reference signal resources includes the transmission power of the reference signal or the relative relationship between the data and the power of the reference signal resource.
- the user equipment receives configuration information that is sent by the base station to indicate N1 reference signal resources in the set of N reference signal resources.
- the user equipment may determine, according to the configuration information, a location of a time-frequency resource that includes N1 reference signal resources in the set of N reference signal resources.
- the base station may allocate at least one port to the user equipment, and the following describes, by the user equipment, which ports specifically receive the non-zero power reference signal:
- the user equipment receives the configuration information sent by the base station, where the configuration information is used to indicate that the M1 ports of the X1 ports are used to send a first reference signal for performing channel measurement, where the first reference signal For a non-zero power reference signal, M1 is less than or equal to X1.
- the X1 is a maximum number of ports multiplexed by the time-frequency resources of the N1 reference signal resources.
- the M1 ports of the X1 ports are determined as ports for receiving the first reference signal, so that the user equipment passes.
- the M1 ports of the X1 ports receive the first reference signal, and cause the user equipment to perform channel measurement according to the first reference signal obtained through the M1 ports of the X1 ports.
- the configuration information includes first indication information and second indication information, where the first indication information is information obtained by the user equipment by using high layer signaling, and the first indication information is used to indicate N The X1 ports multiplexed by the N1 reference signal resources in the set of reference signal resources, the second indication information is information obtained by the user equipment by using dynamic signaling, and the second indication information is used by And M1 ports of the X1 ports multiplexed by N1 reference signal resources in a set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, which are code division multiplexing;
- the N1 reference signal resources in the set of N reference signal resources are multiplexed, and the X1 ports are time-frequency multiplexing and code division multiplexing.
- 1701 represents a PRB pair, and each small lattice represents an RE.
- the N1 reference signal resources correspond to 1702, and the corresponding X1 ports are port0, port1, port2, and port3, and both port0 and port1 occupy two REs, which are code-multiplexed with each other, for example, (1, 1 ) and (1,-1), port2 and port3 also occupy two REs, which are also code-multiplexed, such as (1,1) and (1,-1), and port0/1 and port2/3
- the frequency is multiplexed between them.
- the following describes how the user equipment determines the location of the time-frequency resource of the zero-power reference signal resource:
- the base station sends, to the user equipment, configuration information that is used to indicate the N2 reference signal resources in the set that includes the N reference signal resources.
- the specific manner in which the base station sends the configuration information to the user equipment may be: the base station sends the configuration information by using high layer signaling, or the base station sends the configuration information by using dynamic signaling.
- the configuration information includes location information of time-frequency resources of the N2 reference signal resources
- the configuration information also includes at least one of the following:
- the power information of the N2 reference signal resources, the code resource information of the N2 reference signal resources, and the power information of the reference signal resource includes a transmit power of the reference signal or a relative relationship between the data and the reference signal resource power.
- the user equipment receives the configuration information sent by the base station, so that the user equipment acquires location information of time-frequency resources of the N2 reference signal resources according to the configuration information.
- FIG. 16 shows an optional example, which is not limited.
- the user equipment of the user equipment is a cell 1 , and the user equipment can determine the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources.
- the position is 1601.
- the location 1601 of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources is the time-frequency of the non-zero-power reference signal resource in the set of the N reference signal resources The location of the resource.
- the user equipment can determine the location 1600 of the time-frequency resource of the N2 reference signal resources in the set of N reference signal resources, and the user equipment can determine the N reference signal resources.
- the position 1600 of the time-frequency resource of the N2 reference signal resources in the set is 10,000 except that the position of the time-frequency resource of the position 1601 of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources is zero.
- the position of the time-frequency resource of the reference signal resource of the power is 1602.
- the N1 reference signal resources in the set of N reference signal resources may be multiplexed with X1 ports;
- the N1 reference signal resources in the set of N reference signal resources shown in this embodiment may be multiplexed with X1 ports.
- the specific number of the X1 ports is not limited, as shown in FIG.
- the set including N reference signal resources includes four resource particles RE, and the N1 reference signal resources in the set including N reference signal resources can multiplex two ports, for example, port0 and port1.
- Port0 and port1 use the same two resource particle REs, and adopt code division multiplexing.
- port 0 adopts (1,1)
- port 1 adopts (1,-1) OCC code.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed by X1 ports, or are code-multiplexed, or the set of N reference signal resources are included.
- N1 reference signal resource multiplexing X1 ports are time-frequency multiplexing and code division multiplexing.
- the specific procedure for the base station to set the location of the time-frequency resource indicating the N1 reference signal resources in the set of N reference signal resources to the user is an optional example. It is not limited as long as the base station can notify the user equipment of the location of the time-frequency resource indicating the N1 reference signal resources in the set of N reference signal resources.
- the user equipment of the user equipment is a cell 1
- the base station may indicate the reference signal resources corresponding to the port 2 and the port 3 to the user equipment, so that the user equipment can
- the reference signal resources corresponding to port 2 and port 3 assume a zero power reference signal for interference measurement.
- the base station may allocate the port 4 to the port 7 to the user equipment, so that the user equipment can pass the port 4 Receiving a zero-power reference signal sent by the base station to the port 7, the base station may allocate the port0 to port3 to the user equipment, so that the user equipment can receive the non-zero power sent by the base station by using the port0 to port3 Reference signal.
- the base station indicates, to the user equipment, the location of the time-frequency resource including the set of N reference signal resources.
- the base station indicates, to the user equipment, a location of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources.
- the user The device may determine the location of the time-frequency resource of the reference signal resource of non-zero power in the set of N reference signal resources and the location of the time-frequency resource of the reference signal resource of zero power.
- the user equipment of the user equipment is a cell 1 , and the user equipment can determine the location 1600 of the time-frequency resource that includes the set of N reference signal resources.
- the user equipment is further configured to determine a location 1601 of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources, that is, the user equipment determines the set of the N reference signal resources.
- the location of the time-frequency resource of the non-zero power reference signal resource is further configured to determine a location 1601 of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources, that is, the user equipment determines the set of the N reference signal resources.
- the location of the time-frequency resource of the zero-power reference signal resource is the location 1600 of the time-frequency resource including the set of N reference signal resources, and the N1 reference signals in the set of N reference signal resources are removed.
- the location of the time-frequency resource of the location 1601 of the time-frequency resource of the resource is the location of the time-frequency resource of the zero-power reference signal resource.
- the location of the time-frequency resource indicating the N1 reference signal resources in the set of the N reference signal resources is set to the user, as shown in the foregoing embodiment, specifically in this embodiment. Do not repeat them.
- the following describes the location of the time-frequency resource indicating the set of N reference signal resources to the user by the base station:
- the user equipment determines, according to the pre-stored indication information, that the N reference signals are included.
- Configuration information of a set of resources wherein the indication information is pre-agreed by the base station and the user equipment, and the indication information is used to indicate configuration information of the set of N reference signal resources;
- the base station and the user equipment may pre-approve the location of the time-frequency resource including the set of N reference signal resources, and the user equipment may store the indication information, where the indication information is used to indicate the location.
- the user equipment may directly retrieve the stored indication information, and the user equipment may The indication information determines a location of the time-frequency resource including the set of N reference signal resources.
- the user equipment receives the high layer signaling sent by the base station to indicate the configuration of the set of N reference signal resources;
- the user equipment receives dynamic signaling sent by the base station to indicate configuration and information of the set of N reference signal resources.
- the configuration information includes third indication information and fourth indication information.
- the third indication information is information obtained by the user equipment by using high layer signaling
- the third indication information includes location information of a time-frequency resource of the set of N reference signal resources
- the third indication information further includes at least one of the following:
- the fourth indication information is used to indicate a target port in a range of time-frequency resources of the set of the N reference signal resources indicated by the third indication information, where the target port is the N reference signal resources
- the N1 reference signal resources in the set multiplex the M1 ports of the X1 ports.
- the third indication information is high layer signaling
- the fourth information is dynamic signaling.
- the base station may be in the location information of the time-frequency resource including the set of the N reference signal resources indicated by the third indication information. Specifying the target port within the range, thereby saving the opening for indicating the target port Sales increase the efficiency of data transmission.
- the user equipment is configured according to the location information of the time-frequency resource that includes the set of N reference signal resources, and the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources.
- the location information determines a location of the time-frequency resource of the N2 reference signal resources in the set of N reference signal resources.
- the N1 reference signal resources in the set of N reference signal resources are multiplexed with X1 ports, and the M1 ports of the X1 ports are used to transmit a non-zero power reference signal for performing channel measurement.
- M1 is less than or equal to X1;
- N2 reference signal resources in the set of N reference signal resources according to the location of the time-frequency resource including the set of N reference signal resources and the M1 ports in the X1 ports The location of the time-frequency resource.
- the base station does not need to indicate to the user equipment the location of the time-frequency resource of the N2 reference signal resources in the set of N reference signal resources, and the user equipment only needs to include N according to the Determining the location of the time-frequency resource of the set of reference signal resources and the location of the time-frequency resource of the N1 reference signal resources in the set of N reference signal resources, determining N2 in the set of N reference signal resources The location of the time-frequency resource of the reference signal resource, the location of the time-frequency resource including the N2 reference signal resources in the N reference signal resource sets, including the time-frequency resource corresponding to the X1 non-zero-power reference signal ports, and the N reference The sum of the reference signal ports of the X1 non-zero powers corresponding to the resources other than the time-frequency resources is removed from the set of signal resources, and the time-frequency resources corresponding to the X1 non-zero-power reference signal ports are removed from the N reference signal resource sets.
- Step 1502 The user equipment receives a signal by using the N2 reference signal resources in the set of N reference signal resources.
- the user equipment receives the signal received by the N2 reference signal resources in the set of N reference signal resources, and the foregoing description of the second measurement pilot is specifically described in the foregoing.
- the second measurement pilot in the embodiment is not described again.
- the user equipment has determined, by using the step 1501, the location of the time-frequency resource and the reference of the non-zero power of the zero-power reference signal resource in the set of N reference signal resources.
- the location of the time-frequency resource of the signal resource is determined, by using the step 1501, the location of the time-frequency resource and the reference of the non-zero power of the zero-power reference signal resource in the set of N reference signal resources.
- the user equipment may receive the first reference signal by using the non-zero power reference signal resource in the set of N reference signal resources, where the first reference signal is a non-zero power reference signal.
- the first reference signal resource is a reference signal resource of the non-zero power corresponding to the M1 ports of the X1 ports by the user equipment.
- the user equipment may receive the second reference signal by using the zero-power reference signal resource in the set of N reference signal resources.
- the second reference signal is a zero power reference signal assumed by the user equipment
- the second reference signal resource is used by the user equipment to remove non-zero power reference signal resources corresponding to the M1 ports by using the time-frequency resources corresponding to the set of N reference signal resources. Corresponding time-frequency resources.
- the base station when determining the set of N reference signal resources, performs cooperative processing on each cell or reference signal resources configured for each user equipment.
- the non-zero power reference signal resource in the set of N reference signal resources is 1601, and the zero-power reference signal resource is 1602.
- the base station performs resource configuration for other cells, as shown in FIG. 16, when the base station configures resources for the cell 2, the cell 1 and the cell 2 are in a strong interference relationship, so the service user equipment of the cell 1 is configured non-
- the zero-power reference signal resources 1601 and the service user-configured non-zero power reference signal resources 1603 of cell 2 are staggered from each other.
- the cell 1 and the cell 3 are in a weak interference relationship, because the distance of the transmitted signal is relatively long, so the cell 3 is not circumvented, that is, the cell 3 is not Do not evade.
- the cells1, cell2, and cell3 shown in the figure are assumed to be in the same time-frequency resource block, and the N reference signal resources occupy the same time-frequency resource location. And not limited to different cells, which may be flexible configuration of reference signal resources between different users of the same cell, for example, UE1, UE2, and UE3 in the same cell.
- the base station can align the time-frequency resource of the first reference signal resource of the weak interfering cell cell3 for measuring the channel with the time-frequency resource of the first reference signal resource of the cell1 for measuring the channel, thereby achieving effective overhead and Flexible adjustment of channel measurement accuracy.
- the user equipment can accurately estimate the channel, so that the user equipment feeds back the accurate CSI to the base station.
- the user equipment shown in this embodiment may dynamically switch between the first interference measurement resource, the second interference measurement resource, and the third interference measurement resource.
- the first interference measurement resource is all non-zero power reference signal resources, the number of the non-zero power reference signal resources is the N21, and the N21 is equal to the N.
- the second interference measurement resource is all reference power resources of zero power, the number of the zero-power reference signal resources is the N22, and the N22 is equal to the N.
- the third interference measurement resource includes a non-zero power reference signal resource and a zero-power reference signal resource, the number of the non-zero power reference signal resources is the N21, and the N21 is smaller than the N, The number of zero-power reference signal resources is N22, and the N22 is smaller than the N.
- the user equipment can dynamically switch between the first interference measurement resource, the second interference measurement resource, and the third interference measurement resource, so that the system can perform interference measurement accuracy and measurement reference signal. Make flexible adjustments between the overheads.
- the user equipment uses the first interference measurement resource to perform interference measurement, although the overhead is small, the interference is relatively large, resulting in a decrease in measurement accuracy.
- the user equipment uses the second interference measurement resource to perform interference measurement, although the overhead is large, the interference is relatively small, and the measurement result is more accurate.
- the user equipment may perform dynamic switching on the third interference measurement resource between the first interference measurement resource and the second interference measurement resource, so as to ensure a small overhead. Smaller interference and accurate measurement results.
- Step 1503 The user equipment receives a signal on the non-zero power resource to perform channel measurement to obtain channel information.
- S is a signal measured by the user UE1 of the cell1 cell by using the signal estimation, that is, S is a signal sent by the base station to the user equipment, and the measured interference is 2I 1 + ⁇ 2 , and ⁇ 2 is noise.
- H1 represents a channel from the base station to the user equipment
- X1 represents a reference signal from the base station to the user equipment
- the base station in order to facilitate the user equipment to calculate the signal-to-noise ratio, and then enable the user equipment to feed back the CSI to the base station, the base station sends a non-zero power reference to the user equipment by using the non-zero power reference signal resource.
- the ratio of the reference signal power of the signal to the power of each layer of data transmitted by the base station is M, and the M can be determined by N and N1.
- the base station sends the reference signal resource of the non-zero power to the user equipment.
- the ratio of the reference signal power of a reference signal resource to the power of each layer of data transmitted by the base station is 2, ie 3 dB.
- the non UE1 receives the reference signal by the first port1 resources, for example, in the present embodiment, the 2I 1 I 1 is assumed to be subject to interference cell3 interfering users, and it is assumed interfering users
- the ratio of the zero power reference signal power to the power of each layer of data is 2, so the measured interference is 2I 1 .
- the interference I 1 received by the user equipment UE1 is weak interference of the UE3 in the cell 3.
- Step 1504 The user equipment performs measurement according to the received signal on the zero power resource to obtain interference information.
- the second reference signal resource R2 2I 2 + ⁇ 2 received by the user equipment.
- the interference and noise measured by the user equipment according to the second reference signal resource are 2I 2 + ⁇ 2 , and ⁇ 2 is noise. It is assumed that the interference of the interfering user of cell 2 is received, and the ratio of the non-zero power reference signal power of the interfering user to the power of each layer of data is assumed to be 2, so the measured interference is 2I 2 .
- the base station in order to facilitate the user equipment to calculate the signal-to-noise ratio, and then enable the user equipment to feed back the CSI to the base station, the base station sends the zero-power reference signal resource to the user equipment.
- a ratio of a reference signal power of the second reference signal resource and a power of each layer of data transmitted by the base station is N, where N is a layer number of data transmitted by the base station;
- the ratio of the reference signal power of the resource to the power of each layer of data transmitted by the base station is 2, ie 3 dB.
- UE1 receives via port 2 and port 3 on the second reference signal resources, for example, in the present embodiment, the 2I 2 I 2 assumes a non-zero interference power reference signal power data and user The ratio of the power of each corresponding layer of data is 2, so the measured interference is 2I 2 .
- Step 1505 The user equipment determines channel state information CSI according to the channel information and the interference information.
- the channel state information CSI shown in this embodiment is a signal to noise ratio.
- the specific process for the user equipment to calculate the signal to noise ratio may be:
- the base station sends a power difference between the first reference signal resource and the second reference signal resource and the data to the user equipment.
- the first reference signal resource and the second reference signal resource are transmitted on resources that use at least two frequency divisions. If the resources are transmitted on the N frequency division, the power ratio of each reference signal port to the data is N, The M may be determined by the number of frequency division resources occupied by the N resources.
- Step 1506 The user equipment quantizes the signal to noise ratio and feeds back to the base station.
- the channel state information CSI is exemplified as an example.
- the channel state information CSI may also be the detected first reference signal resource.
- the second reference signal resource the user equipment may directly feed back the first reference signal resource and the second reference signal resource to the base station, and the base station according to the received first reference signal
- the measurement of the signal-to-noise ratio is performed by the resource and the second reference signal resource.
- the specific process of measuring the signal-to-noise ratio of the base station refer to the measurement process of the user equipment to the signal-to-noise ratio, as shown in the foregoing embodiment. Do not repeat them.
- Step 1507 The base station receives the signal to noise ratio fed back by the user equipment.
- the specific structure of the base station and the user equipment provided in this embodiment may also be used to implement the method shown in FIG. 15.
- the specific functional modules of the base station and the user equipment are not limited in this embodiment, as long as the present invention can be implemented.
- the method shown in the examples can be used.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. in.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (114)
- 一种数据传输方法,其特征在于,包括:用户设备根据测量进程的类型确定测量过程和反馈的信道状态信息CSI类型,所述测量进程的类型包括对测量信号的导频和测量干扰的导频的定义,不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同;所述用户设备根据已确定的所述测量过程和/或反馈的CSI的类型进行测量和反馈。
- 根据权利要求1所述的方法,其特征在于,所述用户设备根据测量进程的类型确定测量过程和反馈的信道状态信息CSI类型包括:若所述测量进程中定义的测量信号的导频为第一测量导频,则所述用户设备反馈的CSI类型为第一CSI;或,若所述测量进程中定义的测量信号的导频为第二测量导频,则所述用户设备反馈的CSI类型为第二CSI,所述的第一CSI包含的反馈量和第二CSI包含的反馈量不同。
- 根据权利要求2所述的方法,其特征在于,所述第一测量导频为没有经过预编码的导频或经过预编码的导频,和/或所述第一测量导频为周期发送的导频;所述第二测量导频为经过预编码的导频,和/或所述第二测量导频为非周期发送的,和/或所述第二测量导频为所述基站触发的,和/或所述的第二测量导频是子带发送的。
- 根据权利要求2或3所述的方法,其特征在于,所述第一CSI包括等级指示RI,预编码矩阵指示PMI,信道质量指示CQI,或者所述第一CSI包括RI,PMI;所述第二CSI包括RI,PMI,CQI,或者所述第二CSI包含CQI,或者所述第二CSI包括指示选定波束的索引BI,RI,CQI。
- 根据权利要求1所述的方法,其特征在于,所述不同类型的测量进程 对应的测量过程和/或反馈的信道状态信息CSI的类型不同包括:一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于等于1的整数,K为大于1的整数,则K个测量干扰的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求1所述的方法,其特征在于,所述不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同包括:一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于1的整数,K为大于等于1的整数,则M个测量信号的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求5或6中所述的方法,其特征在于,所述独立的限制性测量的配置包括以下至少一项:独立的限制性测量的开和关,独立配置限制性测量时间窗的起始时间,独立配置限制性测量时间窗的结束时间,独立配置限制性测量的平均窗的时长,独立配置限制性测量的信令类型。
- 根据权利要求5所述的方法,其特征在于,根据所述K个测量干扰的导频测量得到的K个干扰中的K1个干扰测量量合成以确定一个CQI,K1为大于1小于等于K的整数。
- 根据权利要求6所述的方法,其特征在于,根据所述M个测量信号的导频测量得到的M个信号测量中的M1个信号合成以确定一个CQI,M1为大于1小于等于M的整数。
- 根据权利要求7中所述的方法,其特征在于,所述独立配置限制性测量的信令类型包括独立通过高层信令或者动态信令进行限制性测量的配置,所述的动态信令为通过UL grant信令通知,或者DL grant信令。
- 根据权利要求5至权利要求10任一项所述的方法,其特征在于,所述K个测量干扰的导频全部是非零功率导频,或者全部是零功率导频,或者K个测量干扰的导频包括非零功率导频和零功率导频。
- 根据权利要求5至权利要求11任一项所述的方法,其特征在于,所述K个测量干扰的导频中至少有一个是配置为进行干扰测量的限制性测量是关闭的。
- 根据权利要求1至12所述的方法,其特征在于,所述测量进程配置N端口的导频,其中N1个端口的导频用于测量信号,全部的N端口的导频用于测量干扰。
- 根据权利要求1至12任一项所述的方法,其特征在于,所述测量进程配置有一个包含有N个端口的测量导频,其中一个端口的导频用于测量信号,目标端口的导频用于测量干扰,所述N个端口的测量导频包括用于测量信号的一个端口的导频和所述目标端口的导频,所述用户设备用于根据N个端口的测量导频测量得到N个CQI。
- 根据权利要求1至12任一项所述的方法,其特征在于,所述测量进程配置有一个包含有N个端口的测量导频,其中N1个端口的导频用于测量信号,N-N1个端口的导频用于测量干扰,N为大于1的整数,N1为大于等于1小于等于N的整数。
- 根据权利要求14或15所述的方法,其特征在于,所述用户设备计算所述CQI时,所述用户设备确定每个导频端口测量信号的功率和数据的功率比为X,X跟N个端口频分复用的子载波个数相关或者是固定的。
- 根据权利要求14或15所述的方法,其特征在于,所述用户设备计算所述CQI时,所述用户设备确定每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比为Y,Y跟N个端口频分复用的子载波个数相关或者是固定的。
- 根据权利要求16或17所述的方法,其特征在于,每个导频端口测量信号的功率和数据的功率比X和每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比Y相等。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述第二测量导频的时频资源位置为一个子帧的第一时隙内。
- 根据权利要求19所述的方法,其特征在于,所述用户设备在所述第 二测量导频所在的子帧的第二个时隙进行所述第二CSI反馈。
- 根据要求19所述的方法,其特征在于,配置信令与所述第二测量导频在相同的时隙内,所述配置信令用于配置所述第二测量导频,并且所述配置信令所在的符号在所述第二测量导频发送的符号之前。
- 根据权利要求20所述的方法,其特征在于,配置信令与所述第二测量导频在相同的时隙内,所述配置信令用于配置所述第二测量导频,并且所述配置信令所在的符号在所述第二测量导频发送的符号之前。
- 根据权利要求19所述的方法,其特征在于,触发信令与所述第二测量导频在相同的时隙内,所述触发信令用于指示所述用户设备反馈CSI,所述触发信令与所述第二测量导频在相同的时隙内,并且所述触发信令所在的符号在所述第二测量导频发送的符号之前。
- 根据权利要求20所述的方法,其特征在于,触发信令与所述第二测量导频在相同的时隙内,所述触发信令用于指示所述用户设备反馈CSI,所述触发信令与所述第二测量导频在相同的时隙内,并且所述触发信令所在的符号在所述第二测量导频发送的符号之前。
- 根据权利要求20至24中任一项所述的方法,其特征在于,用于配置所述第二测量导频的配置信令和用于指示所述用户设备反馈CSI的触发信令在同一个DCI内。
- 根据权利要求1至25中任一项所述的方法,其特征在于,所述方法还包括:所述用户设备接收基站发送的动态信令,所述动态信令指示以下所示的至少两项:CSI反馈的类型集合、CSI的频域粒度、用于反馈所述CSI反馈的类型集合的反馈时刻以及CSI反馈的上行信道类型;所述CSI反馈的类型集合包括以下所示的至少两项CSI反馈的类型:RI,PMI,CQI干扰功率,干扰协方差矩阵,信道协方差矩阵,信道协方差矩阵,CQI,Beam选择信息;各个Beam之间合成的因子,用于指示所述用户设备进行显示反馈的指示信息和用于指示所述用户设备进行隐式反馈的指示信息。
- 根据权利要求26所述的方法,其特征在于,所述方法还包括:所述用户设备根据所述动态信令确定目标CSI反馈的类型,所述目标CSI反馈的类型为所述CSI反馈的类型集合所包括的至少两项CSI反馈的类型中的任一项,所述用户设备还根据所述动态信令确定用于反馈所述至少两项目标CSI反馈的类型中任一目标CSI反馈的类型的反馈时刻。
- 根据权利要求27所述的方法,其特征在于,所述方法还包括:所述用户设备根据所述动态信令确定用于反馈所述目标CSI反馈的类型中任一目标CSI反馈的类型的反馈时刻为目标反馈时刻,所述目标反馈时刻包括至少两个不同的时刻。
- 根据权利要求26至28任一项所述的方法,其特征在于,所述方法还包括:所述用户设备根据所述动态信令确定至少一个参考信号配置信息;所述用户设备根据所述至少一个参考信号配置信息确定至少一个参考信号,所述至少一个参考信号配置信息用于配置所述至少一个参考信号;所述至少一个参考信号中的任一参考信号对应所述CSI反馈的类型集合中所包括的至少一项CSI反馈的类型。
- 根据权利要求26至28任一项所述的方法,其特征在于,所述方法还包括:所述用户设备根据所述动态信令确定至少一个反馈信道配置信息;所述用户设备根据所述至少一个反馈信道配置信息确定至少一个反馈信道,所述至少一个反馈信道配置信息用于配置所述至少一个反馈信道;所述至少一个反馈信道中的任一反馈信道对应所述CSI反馈的类型集合中所包括的至少一项CSI反馈的类型。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔为X1,根据第一测量导频测量的所述第一CSI的参考资源到上报时刻的时间间隔X2,其中,X1<X2,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到 上报时刻的时间间隔为X1,其中X1为高层信令配置的或者动态信令配置的,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述用户设备根据所述第二测量导频测量的参考资源到上报时刻的时间间隔为X1,其中X1与一个测量进程包含的所述第二测量导频的资源个数和或每个所述第二测量导频包含的端口数相关,所述参考资源为第二测量导频发送的子帧。
- 一种数据传输方法,其特征在于,包括:基站将测量进程的类型指示给用户设备,所述测量进程的类型用于使得所述用户设备根据测量进程的类型确定测量过程和反馈的信道状态信息CSI类型,所述测量进程的类型包括对测量信号的导频和测量干扰的导频的定义,不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同;所述基站接收所述用户设备发送的反馈,其中,所述反馈为所述用户设备根据已确定的所述测量过程和/或反馈的CSI所生成。
- 根据权利要求34所述的方法,其特征在于,若所述测量进程中定义的测量信号的导频为第一测量导频,则所述基站接收所述用户设备发送的CSI类型为第一CSI;或,若所述测量进程中定义的测量信号的导频为第二测量导频,则所述基站接收所述用户设备发送的CSI类型为第二CSI,所述的第一CSI包含的反馈量和第二CSI包含的反馈量不同。
- 根据权利要求35所述的方法,其特征在于,所述第一测量导频为没有经过预编码的导频或经过预编码的导频,和/或所述第一测量导频为周期发送的导频;所述的第二测量导频为经过预编码的导频,和/或所述第二测量导频为非周期发送的,和/或所述第二测量导频为所述基站触发的,和/或所述的第二测量导频是子带发送的。
- 根据权利要求34或35所述的方法,其特征在于,所述第一CSI包括等级指示RI,预编码矩阵指示PMI,信道质量指示CQI,或者所述第一CSI包括RI,PMI;所述第二CSI包括RI,PMI,CQI,或者所述第二CSI包含CQI,或者所述第二CSI包括指示选定波束的索引BI,RI,CQI。
- 根据权利要求34所述的方法,其特征在于,所述不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同包括:一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于等于1的整数,K为大于1的整数,则K个测量干扰的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求34所述的方法,其特征在于,所述不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同包括:一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于1的整数,K为大于等于1的整数,则M个测量信号的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求38或39所述的方法,其特征在于,所述独立的限制性测量的配置包括以下至少一项:独立的限制性测量的开和关,独立配置限制性测量时间窗的起始时间,独立配置限制性测量时间窗的结束时间,独立配置限制性测量的平均窗的时长,独立配置限制性测量的信令类型。
- 根据权利要求38所述的方法,其特征在于,所述基站接收所述用户设备发送的CQI,其中,所述CQI为所述用户设备根据所述K个测量干扰的导频测量得到的K个干扰中的K1个干扰测量量合成以确定一个CQI,K1为大于1小于等于K的整数。
- 根据权利要求39所述的方法,其特征在于,所述基站接收所述用户设备发送的CQI,其中,所述CQI为所述用户设备根据所述M个测量信号的 导频测量得到的M个信号测量中的M1个信号合成以确定一个CQI,M1为大于1小于等于M的整数。
- 根据权利要求39所述的方法,其特征在于,所述独立配置限制性测量的信令类型包括独立通过高层信令或者动态信令进行限制性测量的配置,所述的动态信令为通过UL grant信令通知,或者DL grant信令。
- 根据权利要求38至权利要求43任一项所述的方法,其特征在于,所述K个测量干扰的导频全部是非零功率导频,或者全部是零功率导频,或者K个测量干扰的导频包括非零功率导频和零功率导频。
- 根据权利要求38至权利要求34任一项所述的方法,其特征在于,所述K个测量干扰的导频中至少有一个是配置为进行干扰测量的限制性测量是关闭的。
- 根据权利要求34至44所述的方法,其特征在于,所述测量进程配置N端口的导频,其中N1个端口的导频用于测量信号,全部的N端口的导频用于测量干扰。
- 根据权利要求34至45所述的方法,其特征在于,所述测量进程配置有一个包含有N个端口的测量导频,其中一个端口的导频用于测量信号,目标端口的导频用于测量干扰,所述N个端口的测量导频包括用于测量信号的一个端口的导频和所述目标端口的导频,所述用户设备用于根据N个端口的测量导频测量得到N个CQI。
- 根据权利要求36至45所述的方法,其特征在于,所述测量进程配置有一个包含有N个端口的测量导频,其中N1个端口的导频用于测量信号,N-N1个端口的导频用于测量干扰,N为大于1的整数,N1为大于等于1小于等于N的整数。
- 根据权利要求48所述的方法,其特征在于,每个导频端口测量信号的功率和数据的功率比X和每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比Y相等。
- 根据权利要求34至37任一项所述的方法,其特征在于,所述第二测量导频的时频资源位置为一个子帧的第一时隙内。
- 根据权利要求50所述的方法,其特征在于,所述基站在所述第二测量导频所在的子帧的第二个时隙接收所述用户设备发送的所述第二CSI反馈。
- 根据权利要求34至34任一项所述的方法,其特征在于,所述基站确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔;所述基站确定时间间隔X2,所述X2为所述用户设备根据第一测量导频测量的所述第一CSI的参考资源到上报时刻的时间间隔;其中,X1<X2,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求34至34任一项所述的方法,其特征在于,所述基站确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔,其中X1为高层信令配置的或者动态信令配置的,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求34至34任一项所述的方法,其特征在于,所述基站确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔,其中X1与一个测量进程包含的所述第二测量导频的资源个数和或每个所述第二测量导频包含的端口数相关,所述参考资源为第二测量导频发送的子帧。
- 一种用户设备,其特征在于,包括:确定单元,用于根据测量进程的类型确定测量过程和反馈的信道状态信息CSI类型,所述测量进程的类型包括对测量信号的导频和测量干扰的导频的定义,不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同;反馈单元,用于根据已确定的所述测量过程和/或反馈的CSI的类型进行测量和反馈。
- 根据权利要求55所述的用户设备,其特征在于,所述确定单元包括:第一确定模块,用于若所述测量进程中定义的测量信号的导频为第一测量导频,则确定反馈的CSI类型为第一CSI;或,第二确定模块,用于若所述测量进程中定义的测量信号的导频为第二测量导频,则确定反馈的CSI类型为第二CSI,所述的第一CSI包含的反馈量和第二CSI包含的反馈量不同。
- 根据权利要求56所述的用户设备,其特征在于,所述第一确定模块已确定的所述第一测量导频为没有经过预编码的导频或经过预编码的导频,和/或所述第一测量导频为周期发送的导频;所述第二确定模块已确定的所述第二测量导频为经过预编码的导频,和/或所述第二测量导频为非周期发送的,和/或所述第二测量导频为所述基站触发的,和/或所述的第二测量导频是子带发送的。
- 据权利要求56或57所述的用户设备,其特征在于,所述第一确定模块已确定的所述第一CSI包括等级指示RI,预编码矩阵指示PMI,信道质量指示CQI,或者所述第一CSI包括RI,PMI;所述第二确定模块已确定的所述第二CSI包括RI,PMI,CQI,或者所述第二CSI包含CQI,或者所述第二CSI包括指示选定波束的索引BI,RI,CQI。
- 根据权利要求55所述的用户设备,其特征在于,所述确定单元还用于,确定一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于等于1的整数,K为大于1的整数,则K个测量干扰的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求55所述的用户设备,其特征在于,所述确定单元还用于,确定一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于1的整数,K为大于等于1的整数,则M个测量信号的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求59或60所述的用户设备,其特征在于,所述确定单元还用于确定所述独立的限制性测量的配置包括以下至少一项:独立的限制性测量的开和关,独立配置限制性测量时间窗的起始时间,独立配置限制性测量时间窗的结束时间,独立配置限制性测量的平均窗的时长, 独立配置限制性测量的信令类型。
- 根据权利要求59所述的用户设备,其特征在于,所述用户设备还包括第三确定模块,用于根据所述K个测量干扰的导频测量得到的K个干扰中的K1个干扰测量量合成以确定一个CQI,K1为大于1小于等于K的整数。
- 根据权利要求60所述的用户设备,其特征在于,所述用户设备还包括第四确定模块,用于根据所述M个测量信号的导频测量得到的M个信号测量中的M1个信号合成以确定一个CQI,M1为大于1小于等于M的整数。
- 根据权利要求61所述的用户设备,其特征在于,所述确定单元所确定的所述独立配置限制性测量的信令类型包括独立通过高层信令或者动态信令进行限制性测量的配置,所述的动态信令为通过UL grant信令通知,或者DL grant信令。
- 根据权利要求59至权利要求64任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述K个测量干扰的导频全部是非零功率导频,或者全部是零功率导频,或者K个测量干扰的导频包括非零功率导频和零功率导频。
- 根据权利要求59至权利要求64任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述K个测量干扰的导频中至少有一个是配置为进行干扰测量的限制性测量是关闭的。
- 根据权利要求55至权利要求64任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述测量进程配置N端口的导频,其中N1个端口的导频用于测量信号,全部的N端口的导频用于测量干扰。
- 根据权利要求54至权利要求66任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述测量进程配置有一个包含有N个端口的测量导频,其中一个端口的导频用于测量信号,目标端口的导频用于测量干扰,所述N个端口的测量导频包括用于测量信号的一个端口的导频和所述目标端口的导频,所述用户设备用于根据N个端口的测量导频测量得到N个CQI。
- 根据权利要求55至权利要求66任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述测量进程配置有一个包含有N个端口的测量 导频,其中N1个端口的导频用于测量信号,N-N1个端口的导频用于测量干扰,N为大于1的整数,N1为大于等于1小于等于N的整数。
- 根据权利要求68或69所述的用户设备,其特征在于,所述确定单元还用于,确定计算所述CQI时,所述用户设备确定每个导频端口测量信号的功率和数据的功率比为X,X跟N个端口频分复用的子载波个数相关或者是固定的。
- 根据权利要求68或69所述的用户设备,其特征在于,所述确定单元还用于,确定计算所述CQI时,所述用户设备确定每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比为Y,Y跟N个端口频分复用的子载波个数相关或者是固定的。
- 根据权利要求70或71所述的用户设备,其特征在于,所述确定单元还用于,确定每个导频端口测量信号的功率和数据的功率比X和每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比Y相等。
- 根据权利要求55至权利要求58任一项所述的用户设备,其特征在于,所述确定单元还用于,确定所述第二测量导频的时频资源位置为一个子帧的第一时隙内。
- 根据权利要求73所述的用户设备,其特征在于,所述用户设备还包括发送单元,所述发送单元用于,在所述第二测量导频所在的子帧的第二个时隙进行所述第二CSI反馈。
- 根据权利要求55至权利要求58任一项所述的用户设备,其特征在于,所述确定单元还用于,确定根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔为X1,根据第一测量导频测量的所述第一CSI的参考资源到上报时刻的时间间隔X2,其中,X1<X2,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求55至权利要求58任一项所述的用户设备,其特征在于,所述确定单元还用于,确定根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔为X1,其中X1为高层信令配置的或者动态信令配置的,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求55至权利要求58任一项所述的用户设备,其特征在于,所述确定单元还用于,确定根据所述第二测量导频测量的参考资源到上报时刻的时间间隔为X1,其中X1与一个测量进程包含的所述第二测量导频的资源个数和或每个所述第二测量导频包含的端口数相关,所述参考资源为第二测量导频发送的子帧。
- 一种基站,其特征在于,包括:指示单元,用于将测量进程的类型指示给用户设备,所述测量进程的类型用于使得所述用户设备根据测量进程的类型确定测量过程和反馈的信道状态信息CSI类型,所述测量进程的类型包括对测量信号的导频和测量干扰的导频的定义,不同类型的测量进程对应的测量过程和/或反馈的信道状态信息CSI的类型不同;接收单元,用于接收所述用户设备发送的反馈,其中,所述反馈为所述用户设备根据已确定的所述测量过程和/或反馈的CSI所生成。
- 根据权利要求78所述的基站,其特征在于,所述接收单元包括:第一接收模块,用于若所述测量进程中定义的测量信号的导频为第一测量导频,则接收所述用户设备发送的CSI类型为第一CSI;或,第二接收模块,用于若所述测量进程中定义的测量信号的导频为第二测量导频,则接收所述用户设备发送的CSI类型为第二CSI,所述的第一CSI包含的反馈量和第二CSI包含的反馈量不同。
- 根据权利要求79所述的基站,其特征在于,所述指示单元,还用于指示所述第一测量导频为没有经过预编码的导频或经过预编码的导频,和/或所述第一测量导频为周期发送的导频;所述的第二测量导频为经过预编码的导频,和/或所述第二测量导频为非周期发送的,和/或所述第二测量导频为所述基站触发的,和/或所述的第二测量导频是子带发送的。
- 根据权利要求78或79所述的基站,其特征在于,所述接收单元已接收到的所述第一CSI包括等级指示RI,预编码矩阵指示PMI,信道质量指示CQI,或者所述第一CSI包括RI,PMI;所述接收单元已接收到的所述第二CSI包括RI,PMI,CQI,或者所述第二CSI包含CQI,或者所述第二CSI包括指示选定波束的索引BI,RI,CQI。
- 根据权利要求78所述的基站,其特征在于,所述指示单元,还用于指示一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于等于1的整数,K为大于1的整数,则K个测量干扰的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求78所述的基站,其特征在于,所述指示单元,还用于指示一个测量进程包括M个测量信号的导频和K个测量干扰的导频,M为大于1的整数,K为大于等于1的整数,则M个测量信号的导频采用独立的限制性测量的配置,所述的限制性测量是指对允许进行测量的滑动平均的资源的范围进行限定。
- 根据权利要求82或83所述的基站,其特征在于,所述指示单元,还用于指示所述独立的限制性测量的配置包括以下至少一项:独立的限制性测量的开和关,独立配置限制性测量时间窗的起始时间,独立配置限制性测量时间窗的结束时间,独立配置限制性测量的平均窗的时长,独立配置限制性测量的信令类型。
- 根据权利要求74所述的基站,其特征在于,所述接收单元还用于,接收所述用户设备发送的CQI,其中,所述CQI为所述用户设备根据所述K个测量干扰的导频测量得到的K个干扰中的K1个干扰测量量合成以确定一个CQI,K1为大于1小于等于K的整数。
- 根据权利要求83所述的基站,其特征在于,所述接收单元还用于,接收所述用户设备发送的CQI,其中,所述CQI为所述用户设备根据所述M个测量信号的导频测量得到的M个信号测量中的M1个信号合成以确定一个CQI,M1为大于1小于等于M的整数。
- 根据权利要求81所述的基站,其特征在于,所述指示单元还用于,指示所述独立配置限制性测量的信令类型包括独立通过高层信令或者动态信令进行限制性测量的配置,所述的动态信令为通过UL grant信令通知,或者 DL grant信令。
- 根据权利要求82至权利要求87任一项所述的基站,其特征在于,所述指示单元,还用于指示所述K个测量干扰的导频全部是非零功率导频,或者全部是零功率导频,或者K个测量干扰的导频包括非零功率导频和零功率导频。
- 根据权利要求82至权利要求88任一项所述的基站,其特征在于,所述指示单元,还用于指示所述K个测量干扰的导频中至少有一个是配置为进行干扰测量的限制性测量是关闭的。
- 根据权利要求78至权利要求88任一项所述的基站,其特征在于,所述指示单元,还用于指示所述测量进程配置N端口的导频,其中N1个端口的导频用于测量信号,全部的N端口的导频用于测量干扰。
- 根据权利要求78至权利要求88任一项所述的基站,其特征在于,所述指示单元,还用于指示所述测量进程配置有一个包含有N个端口的测量导频,其中一个端口的导频用于测量信号,目标端口的导频用于测量干扰,所述N个端口的测量导频包括用于测量信号的一个端口的导频和所述目标端口的导频,所述用户设备用于根据N个端口的测量导频测量得到N个CQI。
- 根据权利要求78至权利要求88任一项所述的基站,其特征在于,所述指示单元,还用于指示所述测量进程配置有一个包含有N个端口的测量导频,其中N1个端口的导频用于测量信号,N-N1个端口的导频用于测量干扰,N为大于1的整数,N1为大于等于1小于等于N的整数。
- 根据权利要求92所述的基站,其特征在于,所述指示单元,还用于指示每个导频端口测量信号的功率和数据的功率比X和每个导频端口测量干扰的功率和所述用户设备收到的数据的干扰的功率比Y相等。
- 根据权利要求78至权利要求80任一项所述的基站,其特征在于,所述指示单元,还用于指示所述第二测量导频的时频资源位置为一个子帧的第一时隙内。
- 根据权利要求78所述的基站,其特征在于,所述接收单元还用于,在所述第二测量导频所在的子帧的第二个时隙接收所述用户设备发送的所述 第二CSI反馈。
- 根据权利要求78至权利要求80任一项所述的基站,其特征在于,所述指示单元,还用于确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔;确定时间间隔X2,所述X2为所述用户设备根据第一测量导频测量的所述第一CSI的参考资源到上报时刻的时间间隔;其中,X1<X2,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求78至权利要求80任一项所述的基站,其特征在于,所述指示单元,还用于确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔,其中X1为高层信令配置的或者动态信令配置的,所述参考资源为第二测量导频发送的子帧。
- 根据权利要求78至权利要求80任一项所述的基站,其特征在于,所述指示单元,还用于确定时间间隔X1,所述X1为所述用户设备根据所述第二测量导频测量的所述第二CSI的参考资源到上报时刻的时间间隔,其中X1与一个测量进程包含的所述第二测量导频的资源个数和或每个所述第二测量导频包含的端口数相关,所述参考资源为第二测量导频发送的子帧。
- 一种数据传输方法,其特征在于,包括:用户设备根据包含N个参考信号资源的集合中的N1个参考信号资源进行信道信息的测量以得到信道信息,其中,所述N为大于或等于2的正整数,所述N1为小于或等于N的正整数;所述用户设备根据所述包含N个参考信号资源的集合中的N2个参考信号资源进行干扰信息的测量以得到干扰信息,所述N2为小于或等于N的正整数;所述用户设备根据所述信道信息和所述干扰信息确定信道状态信息CSI;所述用户设备将已确定的所述信道状态信息CSI发送给基站。
- 根据权利要求99所述的方法,其特征在于,所述包含N个参考信号资源的集合中的N1个参考信号资源和所述包含N个参考信号资源的集合中的N2个参考信号资源存在重叠的资源,所述N1个参考信号资源用于进行信 道信息的测量,所述N2个参考信号资源用于进行干扰信息的测量。
- 根据权利要求99或100所述的方法,其特征在于,所述包含N个参考信号资源的集合中的N2个参考信号资源包括N21个配置为非零功率的参考信号资源和/或N22个配置为零功率的参考信号资源,所述N21小于或等于所述N,所述N22小于或等于所述N。
- 根据权利要求101所述的方法,其特征在于,所述用户设备在第一干扰测量资源、第二干扰测量资源和第三干扰测量资源之间进行动态切换,其中,所述第一干扰测量资源全部为非零功率的参考信号资源,所述非零功率的参考信号资源的数目为所述N21个,且所述N21等于所述N;所述第二干扰测量资源全部为零功率的参考信号资源,所述零功率的参考信号资源的数目为所述N22个,且所述N22等于所述N;所述第三干扰测量资源包括非零功率的参考信号资源和零功率的参考信号资源,所述非零功率的参考信号资源的数目为所述N21个,且所述N21小于所述N,所述零功率的参考信号资源的数目为所述N22个,且所述N22小于所述N。
- 根据权利要求101或102所述的方法,其特征在于,所述N2个参考信号资源所包括的N21个配置为非零功率的参考信号资源与所述包含N个参考信号资源的集合中的N1个参考信号资源相同。
- 根据权利要求99至103任一项所述的方法,其特征在于,所述用户设备根据包含N个参考信号资源的集合中的N1个参考信号资源进行信道的测量之前,所述方法还包括:所述用户设备接收所述基站发送的用于指示所述包含N个参考信号资源的集合中的N1个参考信号资源的配置信息的高层信令,或所述用户设备接收所述基站发送的用于指示所述包含N个参考信号资源的集合中的N1个参考信号资源的配置信息的的动态信令;所述配置信息包括所述N个参考信号资源的集合中的N1个参考信号资源的时频资源的位置信息;所述配置信息还包括以下所示的至少一项:所述N个参考信号资源的集合中的N1个参考信号资源的功率信息,所述 N个参考信号资源的集合中的N1个参考信号资源的码资源信息。
- 根据权利要求99至103任一项所述的方法,其特征在于,所述包含N个参考信号资源的集合中的N1个参考信号资源复用X1个端口;所述用户设备根据所述包含N个参考信号资源的集合中的N1个参考信号资源进行信道的测量之前,所述方法包括:所述用户设备接收所述基站发送的配置信息,所述配置信息用于指示所述X1个端口中的M1个端口用于发送进行信道测量的第一参考信号,其中,所述第一参考信号为非零功率的参考信号,M1小于或等于X1;所述用户设备根据所述包含N个参考信号资源的集合中的N1个参考信号资源进行信道的测量包括:所述用户设备通过所述X1个端口中的M1个端口接收所述第一参考信号;所述用户设备根据通过所述X1个端口中的M1个端口获得的所述第一参考信号进行信道测量。
- 根据权利要求105所述的方法,其特征在于,所述配置信息包括第一指示信息和第二指示信息,所述第一指示信息为所述用户设备通过高层信令所获得到的信息,所述第一指示信息用于指示N个参考信号资源的集合中的N1个参考信号资源复用的所述X1个端口,所述第二指示信息为所述用户设备通过动态信令所获得到的信息,所述第二指示信息用于指示N个参考信号资源的集合中的N1个参考信号资源复用的所述X1个端口中的M1个端口。
- 根据权利要求105或106所述的方法,其特征在于,所述包含N个参考信号资源的集合中的N1个参考信号资源复用X1个端口是码分复用;或者,所述包含N个参考信号资源的集合中的N1个参考信号资源复用X1个端口是时频复用和码分复用。
- 根据权利要求104至107任一项所述的方法,其特征在于,所述用户设备根据所述包含N个参考信号资源的集合中的N2个参考信号资源进行干扰的测量之前,所述方法还包括:所述用户设备接收所述基站发送的用于指示所述包含N个参考信号资源的集合中的N2个参考信号资源的配置信息的高层信令,或所述用户设备接收 所述基站发送的用于指示所述包含N个参考信号资源的集合中的N2个参考信号资源的配置信息的动态信令;所述配置信息包括所述N2个参考信号资源的时频资源的位置信息;所述配置信息还包括以下所示的至少一项:所述N2个参考信号资源的功率信息,所述N2个参考信号资源的码资源信息。
- 根据权利要求104至107任一项所述的方法,其特征在于,所述方法还包括:所述用户设备根据预先存储的指示信息确定包含N个参考信号资源的集合的配置信息,其中,所述指示信息为所述基站和所述用户设备预先约定的,且所述指示信息用于指示所述包含N个参考信号资源的集合的配置信息;或,所述用户设备接收所述基站发送的用于指示所述包含N个参考信号资源的集合的配置的高层信令;或,所述用户设备接收所述基站发送的用于指示所述包含N个参考信号资源的集合的配置和信息的动态信令。
- 根据权利要求109所述的方法,其特征在于,所述方法还包括:所述配置信息包括第三指示信息和第四指示信息,所述第三指示信息为所述用户设备通过高层信令所获得到的信息;所述第三指示信息包括所述N个参考信号资源的集合的时频资源的位置信息;所述第三指示信息还包括以下所示的至少一项:所述N个参考信号资源的集合的功率信息,所述N个参考信号资源的集合的码资源信息;所述第四指示信息用于指示所述第三指示信息所指示的所述N个参考信号资源的集合的时频资源的范围内的目标端口,所述目标端口为所述N个参考信号资源的集合中的N1个参考信号资源复用X1个端口的中的M1个端口。
- 根据权利要求109或110所述的方法,其特征在于,所述用户设备根据所述包含N个参考信号资源的集合中的N2个参考信号资源进行干扰的测 量之前,所述方法还包括:所述用户设备根据所述包含N个参考信号资源的集合的时频资源的位置信息以及所述包含N个参考信号资源的集合中的N1个参考信号资源的时频资源的位置信息确定所述包含N个参考信号资源的集合中的N2个参考信号资源的时频资源的位置。
- 根据权利要求109或110所述的方法,其特征在于,所述包含N个参考信号资源的集合中的N1个参考信号资源复用X1个端口,所述X1个端口中的M1个端口用于发送进行信道测量的非零功率的参考信号,其中,M1小于或等于X1;所述用户设备根据所述包含N个参考信号资源的集合中的N2个参考信号资源进行干扰的测量之前,所述方法还包括:所述用户设备根据所述包含N个参考信号资源的集合的时频资源的位置以及所述X1个端口中的M1个端口确定所述包含N个参考信号资源的集合中的N2个参考信号资源的时频资源的位置。
- 根据权利要求112所述的方法,其特征在于,所述用户设备根据所述包含N个参考信号资源的集合中的N2个参考信号资源进行干扰的测量包括:所述用户设备通过所述包含N个参考信号资源的集合中的N2个参考信号进行干扰测量,其中,通过所述包含N个参考信号资源的集合中的N2个参考信号资源包括第一参考信号资源和第二参考信号资源,所述第一参考信号资源为所述用户设备通过所述X1个端口中的M1个端口所对应的非零功率的参考信号资源,所述第二参考信号资源为所述用户设备假定的零功率的参考信号;其中,所述第二参考信号资源为所述用户设备通过所述包含N个参考信号资源的集合中所对应的时频资源除去所述M1个端口所对应的非零功率的参考信号资源之外对应的时频资源。
- 根据权利要求101至113任一项所述的方法,其特征在于,所述方法还包括:所述用户设备在所述非零功率的参考信号资源上所接收到信号包括所述 基站给所述用户设备所发送的信号和干扰和;所述用户设备在所述零功率资源上所接收到信号包括所述用户设备受到的干扰。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112018006020-8A BR112018006020B1 (pt) | 2015-09-25 | 2016-09-26 | Método de transmissão de dados, equipamento de usuário e estação base |
JP2018515816A JP6695424B2 (ja) | 2015-09-25 | 2016-09-26 | データ送信方法及び関連するデバイス |
KR1020187011362A KR102097313B1 (ko) | 2015-09-25 | 2016-09-26 | 데이터 전송 방법 및 관련 장치 |
EP16848180.2A EP3349499B1 (en) | 2015-09-25 | 2016-09-26 | Data transmission method and related equipment |
US15/935,036 US10574323B2 (en) | 2015-09-25 | 2018-03-25 | Data transmission method and related device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510624685.1A CN106559807B (zh) | 2015-09-25 | 2015-09-25 | 一种数据传输方法以及相关设备 |
CN201510624685.1 | 2015-09-25 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/935,036 Continuation US10574323B2 (en) | 2015-09-25 | 2018-03-25 | Data transmission method and related device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017050299A1 true WO2017050299A1 (zh) | 2017-03-30 |
Family
ID=58385716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2016/100198 WO2017050299A1 (zh) | 2015-09-25 | 2016-09-26 | 一种数据传输方法以及相关设备 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10574323B2 (zh) |
EP (1) | EP3349499B1 (zh) |
JP (1) | JP6695424B2 (zh) |
KR (1) | KR102097313B1 (zh) |
CN (1) | CN106559807B (zh) |
WO (1) | WO2017050299A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019242025A1 (en) * | 2018-06-22 | 2019-12-26 | Nec Corporation | Methods and devices for channel state information transmission |
US10778348B2 (en) | 2017-05-05 | 2020-09-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019057747A (ja) * | 2016-02-04 | 2019-04-11 | シャープ株式会社 | 端末装置、基地局装置および通信方法 |
CN109302222B (zh) * | 2016-05-13 | 2019-11-19 | 华为技术有限公司 | 一种信道信息发送方法、数据发送方法和设备 |
US11553464B2 (en) * | 2016-08-10 | 2023-01-10 | Kyocera Corporation | Radio terminal |
CN107733618A (zh) * | 2016-08-12 | 2018-02-23 | 中兴通讯股份有限公司 | 测量导频的发送方法、信道状态信息的反馈方法及装置 |
CN109362244B (zh) * | 2017-06-16 | 2022-02-22 | 北京小米移动软件有限公司 | 一种数据调度方法及装置 |
CN108847875B (zh) | 2017-06-16 | 2019-10-22 | 华为技术有限公司 | 一种信道状态信息发送、接收方法及设备 |
WO2019056298A1 (en) * | 2017-09-22 | 2019-03-28 | Qualcomm Incorporated | CSI FEEDBACK RESOURCE ASSIGNMENT MECHANISMS |
CN109600199B (zh) * | 2017-09-30 | 2021-01-08 | 维沃移动通信有限公司 | 反馈多用户信道状态信息的方法及装置 |
CN110831047B (zh) * | 2018-08-10 | 2021-11-19 | 成都华为技术有限公司 | 波束测量的方法和装置 |
CN111092640B (zh) * | 2018-10-24 | 2021-03-09 | 上海朗帛通信技术有限公司 | 一种被用于无线通信的用户设备、基站中的方法和装置 |
US11166186B2 (en) * | 2018-11-02 | 2021-11-02 | Samsung Electronics Co., Ltd. | Method and apparatus for channel and interference measurement and reporting |
US10861561B2 (en) * | 2019-01-22 | 2020-12-08 | Samsung Electronics Co., Ltd. | Threshold estimation in NAND flash devices |
WO2020204324A1 (ko) * | 2019-03-29 | 2020-10-08 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말의 채널 상태 정보 보고 방법 및 이를 지원하는 단말 및 기지국 |
CN114342281A (zh) * | 2019-09-11 | 2022-04-12 | 上海诺基亚贝尔股份有限公司 | 信道状态信息反馈 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102300244A (zh) * | 2011-07-15 | 2011-12-28 | 中兴通讯股份有限公司 | 一种干扰测量参考信息的通知方法、干扰测量方法及装置 |
CN102368697A (zh) * | 2011-09-30 | 2012-03-07 | 中兴通讯股份有限公司 | 干扰测量信令通知、干扰测量及反馈方法及其装置 |
CN102387528A (zh) * | 2011-11-08 | 2012-03-21 | 中兴通讯股份有限公司 | 一种干扰测量信息通知方法、干扰测量方法、基站及终端 |
CN103037395A (zh) * | 2011-09-29 | 2013-04-10 | 华为技术有限公司 | 多个接入点时配置csi-rs的方法、基站及接入点 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200721861A (en) * | 2005-09-09 | 2007-06-01 | Nokia Corp | Use of measurement pilot for radio measurement in a wireless network |
CN102468927B (zh) * | 2010-11-15 | 2014-04-30 | 华为技术有限公司 | 上报信道状态的方法、设备及系统 |
CN103249150A (zh) * | 2012-02-03 | 2013-08-14 | 中兴通讯股份有限公司 | 一种下行导频配置方法及基站及移动终端 |
US20130265959A1 (en) | 2012-04-10 | 2013-10-10 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving a feedback signal in a mobile communication system |
CN102684835B (zh) * | 2012-05-10 | 2015-05-20 | 电信科学技术研究院 | 多点信道状态信息的上报方法和设备 |
WO2014007512A1 (ko) * | 2012-07-02 | 2014-01-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널상태정보 보고 방법 및 장치 |
CN103580819B (zh) * | 2012-07-31 | 2018-05-18 | 中兴通讯股份有限公司 | 信道状态信息反馈的配置方法及装置,测量、反馈方法及装置 |
CN103580742B (zh) * | 2012-08-03 | 2019-03-29 | 上海诺基亚贝尔股份有限公司 | 控制csi报告的方法及装置 |
CN103716116B (zh) * | 2012-09-28 | 2019-04-16 | 中兴通讯股份有限公司 | 信道状态信息反馈信令的配置方法、基站和终端 |
CN103716827B (zh) * | 2012-09-28 | 2017-08-04 | 电信科学技术研究院 | 信道状态信息参考资源的指示和测量方法及设备 |
CN103795491B (zh) * | 2012-11-01 | 2019-01-15 | 中兴通讯股份有限公司 | 信道状态信息的处理方法、基站和终端 |
CN104038312B (zh) * | 2013-03-08 | 2019-12-31 | 中兴通讯股份有限公司 | 信道测量导频的指示信令的确定、csi反馈方法及装置 |
CN105099967B (zh) * | 2014-05-23 | 2020-10-23 | 三星电子株式会社 | 用于蜂窝通信系统中的设备及其方法 |
CN104869649B (zh) * | 2015-06-16 | 2018-02-13 | 江苏省邮电规划设计院有限责任公司 | 一种lte系统中多点协作传输多小区测量导频配置方法 |
CN106411374B (zh) * | 2015-07-31 | 2020-01-24 | 电信科学技术研究院 | 一种fd mimo系统信道状态信息反馈方法及相关设备 |
-
2015
- 2015-09-25 CN CN201510624685.1A patent/CN106559807B/zh active Active
-
2016
- 2016-09-26 EP EP16848180.2A patent/EP3349499B1/en active Active
- 2016-09-26 JP JP2018515816A patent/JP6695424B2/ja active Active
- 2016-09-26 KR KR1020187011362A patent/KR102097313B1/ko active IP Right Grant
- 2016-09-26 WO PCT/CN2016/100198 patent/WO2017050299A1/zh active Application Filing
-
2018
- 2018-03-25 US US15/935,036 patent/US10574323B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102300244A (zh) * | 2011-07-15 | 2011-12-28 | 中兴通讯股份有限公司 | 一种干扰测量参考信息的通知方法、干扰测量方法及装置 |
CN103037395A (zh) * | 2011-09-29 | 2013-04-10 | 华为技术有限公司 | 多个接入点时配置csi-rs的方法、基站及接入点 |
CN102368697A (zh) * | 2011-09-30 | 2012-03-07 | 中兴通讯股份有限公司 | 干扰测量信令通知、干扰测量及反馈方法及其装置 |
CN102387528A (zh) * | 2011-11-08 | 2012-03-21 | 中兴通讯股份有限公司 | 一种干扰测量信息通知方法、干扰测量方法、基站及终端 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10778348B2 (en) | 2017-05-05 | 2020-09-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out |
EP3806376B1 (en) * | 2017-05-05 | 2022-07-06 | Telefonaktiebolaget LM Ericsson (publ) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out |
US11736210B2 (en) | 2017-05-05 | 2023-08-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out |
EP4099603B1 (en) * | 2017-05-05 | 2023-12-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out |
WO2019242025A1 (en) * | 2018-06-22 | 2019-12-26 | Nec Corporation | Methods and devices for channel state information transmission |
US11595087B2 (en) | 2018-06-22 | 2023-02-28 | Nec Corporation | Methods and devices for channel state information transmission |
Also Published As
Publication number | Publication date |
---|---|
JP6695424B2 (ja) | 2020-05-20 |
CN106559807B (zh) | 2021-08-20 |
US20180212663A1 (en) | 2018-07-26 |
CN106559807A (zh) | 2017-04-05 |
EP3349499A4 (en) | 2018-09-19 |
EP3349499B1 (en) | 2020-11-04 |
JP2018534834A (ja) | 2018-11-22 |
KR102097313B1 (ko) | 2020-04-06 |
US10574323B2 (en) | 2020-02-25 |
EP3349499A1 (en) | 2018-07-18 |
BR112018006020A2 (zh) | 2018-10-30 |
KR20180058779A (ko) | 2018-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017050299A1 (zh) | 一种数据传输方法以及相关设备 | |
US11588601B2 (en) | System and method for control signaling | |
US11044065B2 (en) | Method and apparatus for transmitting and receiving feedback information in mobile communication system using multiple antennas | |
AU2021204447B2 (en) | Interference measurements and channel state information feedback for multi-user multiple-in multiple-out | |
KR102402529B1 (ko) | 감소된 밀도 csi-rs를 위한 메커니즘들 | |
EP3490163B1 (en) | Method and device for receiving channel state information in mobile communication system | |
KR101504446B1 (ko) | 채널 품질 지시 정보를 확정하는 방법 및 장치 | |
EP2898606B1 (en) | Feedback method and apparatus for use in mobile communication system | |
US10454554B2 (en) | Interference measurement method and apparatus for use in mobile communication system | |
US9148208B2 (en) | Antenna selection codebook for full dimensional MIMO systems | |
AU2013337196A1 (en) | Method and terminal for determining channel state information | |
CN107370584B (zh) | 一种导频信息的发送方法和装置以及接收方法和装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16848180 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2018515816 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016848180 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112018006020 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20187011362 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 112018006020 Country of ref document: BR Kind code of ref document: A2 Effective date: 20180326 |